{"id":64,"date":"2019-05-15T15:33:47","date_gmt":"2019-05-15T14:33:47","guid":{"rendered":"http:\/\/blogs.exeter.ac.uk\/extremag\/?page_id=64"},"modified":"2024-10-22T11:05:17","modified_gmt":"2024-10-22T11:05:17","slug":"experiments-summer-2020","status":"publish","type":"page","link":"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/","title":{"rendered":"Experiments"},"content":{"rendered":"<pre>Updated October 2022<\/pre>\n<h1>Overview<\/h1>\n<p>EXTREMAG has five main user experiments, each with a variety of configurations to best suit user measurement requirements.\u00a0 In brief the following experiments are currently available, while more details are provided below.<\/p>\n<h3>Free space lab B2<\/h3>\n<ul>\n<li>All-optical pump-probe Kerr measurements at variable temperature in a 10 T superconducting magnet.<\/li>\n<li>Time-resolved Kerr measurement of microwave driven magnetization dynamics (or all-optical pump-probe Kerr measurements) at variable temperature in a gas flow cryostat.<\/li>\n<li>Time-resolved scanning Kerr microscopy at room temperature with pulsed, microwave, or quasi-DC excitation of sub-micron materials and devices.<\/li>\n<\/ul>\n<h3>Microscopy lab B3<\/h3>\n<ul>\n<li>All-optical pump, beam-scanning-probe ultrafast Kerr microscopy at variable temperature in a 5 T superconducting magnet.<\/li>\n<li>Wide field Kerr microscopy at variable temperature (heating or cooling) with all-optical pump, or electrical excitation of materials and devices.<\/li>\n<\/ul>\n<h1>All-optical pump-probe measurements at variable temperature<\/h1>\n<p>All-optical pump-probe experiments at variable temperature are available in three cryostats and use the tuneable <a href=\"https:\/\/blogs.exeter.ac.uk\/extremag\/lasers\/\">Opera-F OPA<\/a> output.\u00a0 Typically, two-colour measurements are performed using the 800 nm OPA signal output where 80% is used as the time-delayed ultrafast pump beam, while the remaining 20% is used for second harmonic generation of a low power 400 nm ultrafast probe beam.\u00a0 If alternative pump and probe wavelengths are required, please <a href=\"https:\/\/blogs.exeter.ac.uk\/extremag\/contact\/\">contact the SEO<\/a>.\u00a0 The option for variable temperature is available using the following Oxford Instruments cryostats.<\/p>\n<ul>\n<li>Microstat He-R cryostat with rectangular tail and external electromagnet for moderate in-plane or out-of-plane field up to 0.5 T.<\/li>\n<li>Microstat MO superconducting magnet with up to 5 T out-of-plane field.<\/li>\n<li>Spectromag SM4000 superconducting magnet with up to 10 T out-of-plane field.<\/li>\n<\/ul>\n<p>For all-optical pump-probe measurements at room temperature only, the Microstat He-R cryostat can be removed and replaced with a sample holder with 3-axis translation stage.<\/p>\n<h2>Microstat He-R cryostat<\/h2>\n<h3>All-optical pump-probe<\/h3>\n<p>The Microstat He-R is located in the free space lab B2 so that it can be readily configured for two-colour, all-optical, pump-probe experiments.\u00a0 The wide optical access allows multiple samples to be mounted on the cold finger and the possibility to use a large angle of incidence to probe in-plane magnetized samples using the longitudinal Kerr effect.\u00a0 The pump is typically aligned at normal incidence.\u00a0 The 800 nm pump and 400 nm probe are weakly focussed with 200 mm and 100 mm focal length lenses to achieve a larger pump spot diameter and a more uniform excitation within the smaller region of the probe spot.\u00a0 A high turnover of samples is possible due to the rapid cool down time (~10 minutes) to the base temperature of ~4 K (likely higher on the cold finger).\u00a0 A heater on the heat exchanger can be used to stabilise intermediate temperatures and heat the sample to 300 K.<\/p>\n<div id=\"attachment_343\" style=\"width: 297px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-343\" class=\" wp-image-343\" src=\"https:\/\/sites.exeter.ac.uk\/extremag\/wp-content\/uploads\/sites\/529\/2022\/10\/thumbnail_IMG_3003-225x300.jpg\" alt=\"\" width=\"297\" height=\"392\" \/><p id=\"caption-attachment-343\" class=\"wp-caption-text\">The Microstat He-R helium gas-flow cryostat with rectangular tail and optical access for all-optical pump-probe or optically detected FMR at variable temperature.<\/p><\/div>\n<h3>Optically detected ferromagnetic resonance<\/h3>\n<p>The Microstat He-R can also be used for time-resolved Kerr measurement of microwave driven ferromagnetic resonance (FMR) at variable temperature.\u00a0 The cryostat probe has an SMB RF feedthrough and coaxial cable to a coplanar waveguide (CPW) mounted on the rear side of the cryostat cold finger.\u00a0 The CPW has a 0.5 mm wide centre conductor on a ceramic filled, high thermal conductivity substrate (Arlon1000) onto which samples can be placed.\u00a0 Samples with substrate thickness &lt;0.5 mm are mounted over the centre conductor of the CPW for excitation by the in-plane component of the microwave or pulsed magnetic field generated by the current waveform passing through the CPW.\u00a0 An externally applied magnetic field (up to 0.5 T) can be applied either in-plane along the length of the CPW, or out-of-plane as required.<\/p>\n<div id=\"attachment_345\" style=\"width: 220px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-345\" class=\" wp-image-345\" src=\"https:\/\/sites.exeter.ac.uk\/extremag\/wp-content\/uploads\/sites\/529\/2022\/10\/thumbnail_IMG_2935-225x300.jpg\" alt=\"\" width=\"220\" height=\"289\" \/><p id=\"caption-attachment-345\" class=\"wp-caption-text\">Coplanar waveguide and multiple samples on the cold finger of the Microstat He-R.<\/p><\/div>\n<h3>Magneto-resistance measurements<\/h3>\n<p>Variable temperature electrical measurements may also be possible on request via the RF feedthrough or original 10 pin DC sample connectors using a Keithley 6221\/2182A (AC and DC Current Source\/Nanovoltmeter) Delta Mode System.<\/p>\n<h2>Microstat MO 5 T superconducting magnet<\/h2>\n<p>The Microstat MO (MO) is a helium gas flow superconducting magnet located in the microscopy lab B3.\u00a0 It is equipped with a two-colour, all-optical-pump, beam-scanning-probe microscope that has been constructed for ultrafast time-resolved imaging at low temperature and high magnetic field.\u00a0 The MO is mounted on its side so that its magnetic field lies perpendicular to the sample surface and parallel to the incident pump and probe beam in a polar Kerr effect geometry.\u00a0 The field direction is along the axis of the cylindrical body of the MO.\u00a0 The fixed position 800 nm pump and scanned 400 nm probe are focused using the same microscope objective lens (typically x5 or x20) such that optimum focus of the probe leads to a defocused pump with spot size observable within the maximum field of view, but significantly larger than the focused probe spot.\u00a0 Measurements can be performed at variable temperature from room temperature down to ~5 K, with magnetic field up to ~2.5 T.\u00a0 A heater on the heat exchanger can be used to stabilise intermediate temperatures and heat the sample to 300 K.\u00a0 Careful planning of user time with the MO system is required due to its ~5 hour cool down time.<\/p>\n<div id=\"attachment_363\" style=\"width: 354px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-363\" class=\" wp-image-363\" src=\"http:\/\/blogs.exeter.ac.uk\/extremag\/files\/2022\/10\/5T-wide-angle-300x225.jpg\" alt=\"\" width=\"354\" height=\"269\" \/><p id=\"caption-attachment-363\" class=\"wp-caption-text\">The Microstat MO 5T superconducting magnet equipped with two-colour, all-optical-pump, beam-scanning-probe, polar Kerr microscopy.<\/p><\/div>\n<h2>Spectromag SM4000 10 T superconducting magnet<\/h2>\n<p>The Spectromag SM4000 (Spectromag) is located in the free space lab B2 and configured for two-colour, all-optical, pump-probe experiments in either reflection or transmission.\u00a0 The limited optical access allows only one sample within the field of view, but the sample probe can accommodate multiple (up to 4) samples, which can also be changed within ~1-2 hours when the system is cold.\u00a0 The time-delayed pump is typically aligned at normal incidence and the probe at ~10-15 degrees from normal.\u00a0 Flip mirrors in both optical paths allow the pump and probe paths to the readily swapped if needed.\u00a0 The 800 nm pump and 400 nm probe are weakly focussed with 400 mm and 200 mm focal length lenses to achieve larger pump spot diameter and a more uniform excitation within the smaller region of the probe spot.\u00a0 Two detectors are available for simultaneous measurement of the Faraday effect in transmission and polar Kerr effect in reflection.<\/p>\n<div id=\"attachment_311\" style=\"width: 287px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-311\" class=\" wp-image-311\" src=\"http:\/\/blogs.exeter.ac.uk\/extremag\/files\/2022\/08\/Spectromag10T-Pump-Probe-225x300.jpg\" alt=\"\" width=\"287\" height=\"378\" \/><p id=\"caption-attachment-311\" class=\"wp-caption-text\">Two-colour, all-optical, pump-probe in the Spectromag SM4000.<\/p><\/div>\n<p>The variable temperature insert (VTI) can be rapidly cooled (~10 mins) from an idle temperature of ~170 K by the flow of He gas (from the magnet He reservoir) directly over the sample.\u00a0 A heater on the sample probe and VTI can be used to stabilise intermediate temperatures and heat the sample to 300 K.\u00a0 Two-colour all-optical pump-probe has been demonstrated at an idle temperature of 170 K and up to 5 T, and at base temperature (&lt;1.4 K) up to 1 T, while persistent mode of the magnet at 8 T has been demonstrated over ~12 hours.\u00a0 Careful planning of user time with the Spectromag is required due to its ~2 day cool down time once under high vacuum.<\/p>\n<div id=\"attachment_313\" style=\"width: 188px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-313\" class=\" wp-image-313\" src=\"https:\/\/sites.exeter.ac.uk\/extremag\/wp-content\/uploads\/sites\/529\/2022\/08\/Specromag-probe-224x300.jpg\" alt=\"\" width=\"188\" height=\"247\" \/><p id=\"caption-attachment-313\" class=\"wp-caption-text\">The Spectromag probe with two sample locations.<\/p><\/div>\n<h1>Time-resolved scanning Kerr microscopy<\/h1>\n<p>Time-resolved scanning Kerr microscopy (TRSKM) can be used to perform room temperature time-resolved measurements and imaging of magnetization dynamics with picosecond temporal resolution and spatial resolution down to 100s of nanometers.<\/p>\n<p>The microscope is equipped with a piezoelectric scanning stage with 300 microns travel in x-, y-, and z-directions, and a quad-pass optical delay line for up to 8 ns of time delay.\u00a0 The microscope can use the 1040 nm, 80 MHz, 140 fs output of the <a href=\"https:\/\/blogs.exeter.ac.uk\/extremag\/lasers\/\">Fidelity<\/a> laser or its 520 nm second harmonic, or the signal output of the <a href=\"https:\/\/blogs.exeter.ac.uk\/extremag\/lasers\/\">Opera-F OPA<\/a> at 800 nm, 1 MHz, and &lt;50 fs or its second harmonic at 400 nm.\u00a0 Electronic pulse generators operating at 80 MHz or 1 MHz may be used respectively for either 30 ps rise time, 70 ps duration, and ~5 V amplitude impulses for excitation of high frequency precession, or ~200 ps rise time, 2 ns, 30 V pulses for large amplitude dynamics and switching experiments.\u00a0 Alternatively, quasi-DC waveform excitation may be used, e.g. for spin orbit torque devices.<\/p>\n<p>A small quad-pole electromagnet can be used sweep an in-plane magnetic field applied along any azimuthal direction (up to 50 mT).\u00a0 For larger static applied fields, a reconfigurable permanent magnet array (up to 100 mT in-plane and 300 mT out-of-plane) can be used for enhanced mechanical stability by eliminating the electromagnet and associated heating.\u00a0 The addition of a motorised translation stage and rotary mount will allow for automation of the field applied using the permanent magnet array.<\/p>\n<p>The TRSKM can be used in three configurations for different sample types.<\/p>\n<h3>Continuous magnetic films<\/h3>\n<p>For continuous magnetic films on transparent substrates, the sample can be placed face down onto a separate coplanar waveguide (CPW).\u00a0 The CPW is designed for 50 Ohm characteristic impedance on a high frequency printed circuit board (Arlon 1000).\u00a0 Samples on sufficiently thin (&lt;0.5 mm) opaque substrates can be placed face up, but the magnetic field excitation will be weaker due to the distance of the film from the CPW.\u00a0 Substrates should be insulating to avoid the shielding effects of eddy currents that doped substrates can present.<\/p>\n<h3>Micro- and nano-structured magnetic materials<\/h3>\n<p>For micro- and nano-structured magnetic materials an integrated CPW (or coplanar stripline) fabricated using photolithography is recommended.\u00a0 Such a waveguide can deliver a sizeable pulsed or microwave magnetic field for efficient excitation of micro- and nano-structured elements.\u00a0 At the same time, the integrated CPW serves as a location guide for small regions of patterned material, removing the need to fabricate large arrays.\u00a0 While patterned materials can be studied using the separate PCB CPW described above, precise alignment of sub-mm regions of patterned material with the centre conductor is challenging, while the excitation efficiency is compromised by the reduced proximity to the CPW, particularly on opaque substrates.\u00a0 Integrated waveguides can be designed with impedance matched large bond pads for contact with conductive paint, or with microscale contact pads to land high frequency microwave probes (preferred), or for wire bonding (not readily available).\u00a0 Microwave probes are available in a signal-ground (S-G), G-S, and G-S-G configuration with G-S pitch of 150 um or 300 um.<\/p>\n<h3>Magnetic devices<\/h3>\n<p>For devices, including spintronic, magnonic, magneto-acoustic, and magneto-electric, a pulsed, microwave or quasi-DC electrical waveform can be passed through the device itself to use the intended device mechanism for excitation, e.g. spin-transfer and spin-orbit torque, piezoelectric control of magnetostriction, or voltage-controlled magnetic anisotropy.\u00a0 Impedance matching of device contacts should be considered, if possible, particularly if the contact length is comparable to, or larger than the wavelength of the excitation waveform.\u00a0 Bond pads should be designed for use with microwave probes, as described above.\u00a0 The field of view in the TRSKM is small when measuring with the highest spatial resolution, and so nearby registration marks or numbers aid device identification.<\/p>\n<div id=\"attachment_169\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-169\" class=\" wp-image-169\" src=\"https:\/\/sites.exeter.ac.uk\/extremag\/wp-content\/uploads\/sites\/529\/2019\/05\/IMG_9984-300x225.jpg\" alt=\"\" width=\"300\" height=\"227\" \/><p id=\"caption-attachment-169\" class=\"wp-caption-text\">The time-resolved scanning Kerr microscope for room temperature imaging of picosecond magnetisation dynamics.<\/p><\/div>\n<p>&nbsp;<\/p>\n<div id=\"attachment_192\" style=\"width: 225px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-192\" class=\" wp-image-192\" src=\"https:\/\/sites.exeter.ac.uk\/extremag\/wp-content\/uploads\/sites\/529\/2019\/05\/IMG_E9901-225x300.jpg\" alt=\"\" width=\"225\" height=\"296\" \/><p id=\"caption-attachment-192\" class=\"wp-caption-text\">Quad-pass, 8 ns optical delay optics.<\/p><\/div>\n<p>TRSKM can be performed with a weakly focusing 40 mm plano-convex lens for continuous film samples, or microscope objective lenses up to x60.\u00a0 For the highest spatial resolution combined with the use of microwave probes, a long working distance (~12 mm) high NA microscope objective is used to accommodate the probes beneath the objective, which can be used to fucus the probe laser directly between the S and G contacts of the microscale probes.\u00a0 In situ atomic force and magnetic force microscopy can be used in the TRSKM on request by adding a compact atomic force microscope to the microscope column allowing for characterisation of the sample topography and equilibrium magnetic state in an applied magnetic field (up to ~100 mT).<\/p>\n<p>Electrical measurements may also be possible on request using a Keithley 6221\/2182A (AC and DC Current Source\/Nanovoltmeter) Delta Mode System.<\/p>\n<h1>THz spectroscopy and imaging<\/h1>\n<p>A THz spectrometer will be under construction from Autumn 2022 for use in the free space lab B2. The system will use fibre-coupled photoconductive antenna emitters and detectors for rapid integration with the either the Microstat He-R cryostat or the Spectromag 10 T magnet for variable temperature THz spectroscopy in an applied magnetic field.<\/p>\n<div id=\"attachment_60\" style=\"width: 401px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-60\" class=\" wp-image-60\" src=\"https:\/\/sites.exeter.ac.uk\/extremag\/wp-content\/uploads\/sites\/529\/2019\/05\/IMG_4897-300x118.jpg\" alt=\"\" width=\"401\" height=\"165\" \/><p id=\"caption-attachment-60\" class=\"wp-caption-text\">The development of THz spectroscopy inside the laser enclosure. THz spectroscopy is now located in the Free Space Lab B2.<\/p><\/div>\n<h1>Wide field Kerr microscopy<\/h1>\n<p>High resolution wide field Kerr microscopy is available at room temperature, low temperature using the helium gas flow microscopy cryostat.\u00a0 In-plane or out-of-plane magnetic fields may be applied to samples in each case.\u00a0 The microscope can be equipped with a rotatable electromagnet for in-plane magnetic fields up to 1.3 T, or a polar electromagnet for out-of-plane magnetic fields up to 0.9 T.\u00a0 Low temperature microscopy down to below 10 K can be performed in an out-of-plane field up to ~100 mT, or an in-plane field up to ~700 mT.\u00a0 The microscope is sensitive to all three components of the sample magnetisation using longitudinal and polar Kerr effects.\u00a0 The microscope features piezoelectric drift correction for optimised differential imaging, and spatially resolved magnetometry (hysteresis loop measurement) from user defined regions of interest.<\/p>\n<p>Electrical measurements may also be possible on request using a Keithley 6221\/2182A (AC and DC Current Source\/Nanovoltmeter) Delta Mode System.\u00a0 Note that piezoelectric drift correction is not possible for fixed electrical probe connections.<\/p>\n<div id=\"attachment_157\" style=\"width: 300px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-157\" class=\" wp-image-157\" src=\"https:\/\/sites.exeter.ac.uk\/extremag\/wp-content\/uploads\/sites\/529\/2019\/10\/Helium-Cooled-Wide-Field-Kerr-Microscopy-300x225.jpg\" alt=\"\" width=\"300\" height=\"228\" \/><p id=\"caption-attachment-157\" class=\"wp-caption-text\">The high resolution wide field Kerr microscope with low temperature capability using\u00a0a helium gas flow microscopy cryostat.\u00a0 A lower resolution overview wide field Kerr microscope is available for larger samples, or samples with large domain structure.<\/p><\/div>\n<p>The system is also equipped with a lower resolution overview wide field Kerr microscope for larger samples or samples with large domains.<\/p>\n<p>A pulsed laser optical pump with tuneable wavelength, or microscale electrical probes to devices are available for this instrument on request and subject to specific requirements.<\/p>\n<p>In the longer term time-resolved wide field Kerr microscopy will be developed by using the femtosecond lasers as a light source for the wide field microscope.<\/p>\n<div id=\"attachment_174\" style=\"width: 224px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-174\" class=\" wp-image-174\" src=\"https:\/\/sites.exeter.ac.uk\/extremag\/wp-content\/uploads\/sites\/529\/2019\/05\/IMG_9620-225x300.jpg\" alt=\"\" width=\"224\" height=\"295\" \/><p id=\"caption-attachment-174\" class=\"wp-caption-text\">The optical set up for optical pulse excitation of samples in the microscopy cryostat of the wide field Kerr microscope, equipped with polar field solenoid.<\/p><\/div>\n","protected":false},"excerpt":{"rendered":"<p>Updated October 2022 Overview EXTREMAG has five main user experiments, each with a variety of configurations to best suit user measurement requirements.\u00a0 In brief the following experiments are currently available, while more details are provided below. Free space lab B2 All-optical pump-probe Kerr measurements at variable temperature in a 10 T superconducting magnet. Time-resolved Kerr [&hellip;]<\/p>\n","protected":false},"author":2255,"featured_media":26,"parent":0,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"page-sidebar-boxed-feature-img.php","meta":{"_acf_changed":false,"footnotes":""},"categories":[],"tags":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Experiments - EXTREMAG<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Experiments - EXTREMAG\" \/>\n<meta property=\"og:description\" content=\"Updated October 2022 Overview EXTREMAG has five main user experiments, each with a variety of configurations to best suit user measurement requirements.\u00a0 In brief the following experiments are currently available, while more details are provided below. 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Time-resolved Kerr [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/\" \/>\n<meta property=\"og:site_name\" content=\"EXTREMAG\" \/>\n<meta property=\"article:modified_time\" content=\"2024-10-22T11:05:17+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/sites.exeter.ac.uk\/extremag\/wp-content\/uploads\/sites\/529\/2019\/02\/EXTREMAG-Logo4.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1050\" \/>\n\t<meta property=\"og:image:height\" content=\"288\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data1\" content=\"12 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/\",\"url\":\"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/\",\"name\":\"Experiments - EXTREMAG\",\"isPartOf\":{\"@id\":\"https:\/\/sites.exeter.ac.uk\/extremag\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/sites.exeter.ac.uk\/extremag\/wp-content\/uploads\/sites\/529\/2019\/02\/EXTREMAG-Logo4.png\",\"datePublished\":\"2019-05-15T14:33:47+00:00\",\"dateModified\":\"2024-10-22T11:05:17+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/#primaryimage\",\"url\":\"https:\/\/sites.exeter.ac.uk\/extremag\/wp-content\/uploads\/sites\/529\/2019\/02\/EXTREMAG-Logo4.png\",\"contentUrl\":\"https:\/\/sites.exeter.ac.uk\/extremag\/wp-content\/uploads\/sites\/529\/2019\/02\/EXTREMAG-Logo4.png\",\"width\":1050,\"height\":288},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/sites.exeter.ac.uk\/extremag\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Experiments\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/sites.exeter.ac.uk\/extremag\/#website\",\"url\":\"https:\/\/sites.exeter.ac.uk\/extremag\/\",\"name\":\"EXTREMAG\",\"description\":\"The Exeter Time-Resolved Magnetism Facility\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/sites.exeter.ac.uk\/extremag\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"en-US\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Experiments - EXTREMAG","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/","og_locale":"en_US","og_type":"article","og_title":"Experiments - EXTREMAG","og_description":"Updated October 2022 Overview EXTREMAG has five main user experiments, each with a variety of configurations to best suit user measurement requirements.\u00a0 In brief the following experiments are currently available, while more details are provided below. Free space lab B2 All-optical pump-probe Kerr measurements at variable temperature in a 10 T superconducting magnet. Time-resolved Kerr [&hellip;]","og_url":"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/","og_site_name":"EXTREMAG","article_modified_time":"2024-10-22T11:05:17+00:00","og_image":[{"width":1050,"height":288,"url":"https:\/\/sites.exeter.ac.uk\/extremag\/wp-content\/uploads\/sites\/529\/2019\/02\/EXTREMAG-Logo4.png","type":"image\/png"}],"twitter_card":"summary_large_image","twitter_misc":{"Est. reading time":"12 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/","url":"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/","name":"Experiments - EXTREMAG","isPartOf":{"@id":"https:\/\/sites.exeter.ac.uk\/extremag\/#website"},"primaryImageOfPage":{"@id":"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/#primaryimage"},"image":{"@id":"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/#primaryimage"},"thumbnailUrl":"https:\/\/sites.exeter.ac.uk\/extremag\/wp-content\/uploads\/sites\/529\/2019\/02\/EXTREMAG-Logo4.png","datePublished":"2019-05-15T14:33:47+00:00","dateModified":"2024-10-22T11:05:17+00:00","breadcrumb":{"@id":"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/#primaryimage","url":"https:\/\/sites.exeter.ac.uk\/extremag\/wp-content\/uploads\/sites\/529\/2019\/02\/EXTREMAG-Logo4.png","contentUrl":"https:\/\/sites.exeter.ac.uk\/extremag\/wp-content\/uploads\/sites\/529\/2019\/02\/EXTREMAG-Logo4.png","width":1050,"height":288},{"@type":"BreadcrumbList","@id":"https:\/\/sites.exeter.ac.uk\/extremag\/experiments-summer-2020\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/sites.exeter.ac.uk\/extremag\/"},{"@type":"ListItem","position":2,"name":"Experiments"}]},{"@type":"WebSite","@id":"https:\/\/sites.exeter.ac.uk\/extremag\/#website","url":"https:\/\/sites.exeter.ac.uk\/extremag\/","name":"EXTREMAG","description":"The Exeter Time-Resolved Magnetism Facility","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/sites.exeter.ac.uk\/extremag\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"}]}},"jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/sites.exeter.ac.uk\/extremag\/wp-json\/wp\/v2\/pages\/64"}],"collection":[{"href":"https:\/\/sites.exeter.ac.uk\/extremag\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/sites.exeter.ac.uk\/extremag\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/sites.exeter.ac.uk\/extremag\/wp-json\/wp\/v2\/users\/2255"}],"replies":[{"embeddable":true,"href":"https:\/\/sites.exeter.ac.uk\/extremag\/wp-json\/wp\/v2\/comments?post=64"}],"version-history":[{"count":1,"href":"https:\/\/sites.exeter.ac.uk\/extremag\/wp-json\/wp\/v2\/pages\/64\/revisions"}],"predecessor-version":[{"id":565,"href":"https:\/\/sites.exeter.ac.uk\/extremag\/wp-json\/wp\/v2\/pages\/64\/revisions\/565"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sites.exeter.ac.uk\/extremag\/wp-json\/wp\/v2\/media\/26"}],"wp:attachment":[{"href":"https:\/\/sites.exeter.ac.uk\/extremag\/wp-json\/wp\/v2\/media?parent=64"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sites.exeter.ac.uk\/extremag\/wp-json\/wp\/v2\/categories?post=64"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sites.exeter.ac.uk\/extremag\/wp-json\/wp\/v2\/tags?post=64"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}