Investigation of magneto-structural phase transition in FeRh by reflectivity and transmittance measurements in visible and near-infrared spectral region
Magneto-structural phase transition in FeRh epitaxial layers was studied optically. It is shown that the transition between the low-temperature antiferromagnetic phase and the high-temperature ferromagnetic phase is accompanied by a rather large change of the optical response in the visible and near...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2016-01-01
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| Series: | New Journal of Physics |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1367-2630/18/8/083017 |
| _version_ | 1827873646673133568 |
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| author | V Saidl M Brajer L Horák H Reichlová K Výborný M Veis T Janda F Trojánek M Maryško I Fina X Marti T Jungwirth P Němec |
| author_facet | V Saidl M Brajer L Horák H Reichlová K Výborný M Veis T Janda F Trojánek M Maryško I Fina X Marti T Jungwirth P Němec |
| author_sort | V Saidl |
| collection | DOAJ |
| description | Magneto-structural phase transition in FeRh epitaxial layers was studied optically. It is shown that the transition between the low-temperature antiferromagnetic phase and the high-temperature ferromagnetic phase is accompanied by a rather large change of the optical response in the visible and near-infrared spectral ranges. This change is consistent with ab initio calculations of reflectivity and transmittance. Phase transition temperatures in a series of FeRh films with thicknesses ranging from 6 to 100 nm is measured thereby demonstrating the utility of the method to quickly characterise samples. Spatially resolved imaging of their magnetic properties with a micrometer resolution shows that the phase transition occurs at different temperatures in different parts of the sample. |
| first_indexed | 2024-03-12T16:40:05Z |
| format | Article |
| id | doaj.art-01603da1249744f0b31e8a38cfe0f2a0 |
| institution | Directory Open Access Journal |
| issn | 1367-2630 |
| language | English |
| last_indexed | 2024-03-12T16:40:05Z |
| publishDate | 2016-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | New Journal of Physics |
| spelling | doaj.art-01603da1249744f0b31e8a38cfe0f2a02023-08-08T14:30:51ZengIOP PublishingNew Journal of Physics1367-26302016-01-0118808301710.1088/1367-2630/18/8/083017Investigation of magneto-structural phase transition in FeRh by reflectivity and transmittance measurements in visible and near-infrared spectral regionV Saidl0M Brajer1L Horák2H Reichlová3K Výborný4M Veis5T Janda6F Trojánek7M Maryško8I Fina9X Marti10T Jungwirth11P Němec12Faculty of Mathematics and Physics, Charles University in Prague , CZ–12116 Praha 2, Czech RepublicFaculty of Mathematics and Physics, Charles University in Prague , CZ–12116 Praha 2, Czech RepublicFaculty of Mathematics and Physics, Charles University in Prague , CZ–12116 Praha 2, Czech RepublicInstitute of Physics, Academy of Sciences of the Czech Republic , v.v.i., CZ–16253 Praha 6, Czech RepublicInstitute of Physics, Academy of Sciences of the Czech Republic , v.v.i., CZ–16253 Praha 6, Czech RepublicFaculty of Mathematics and Physics, Charles University in Prague , CZ–12116 Praha 2, Czech RepublicFaculty of Mathematics and Physics, Charles University in Prague , CZ–12116 Praha 2, Czech RepublicFaculty of Mathematics and Physics, Charles University in Prague , CZ–12116 Praha 2, Czech RepublicInstitute of Physics, Academy of Sciences of the Czech Republic , v.v.i., CZ–16253 Praha 6, Czech RepublicICN2-Institut Català de Nanociència i Nanotecnologia, Campus Universitat Autònoma de Barcelona , E–08193 Bellaterra, SpainInstitute of Physics, Academy of Sciences of the Czech Republic , v.v.i., CZ–16253 Praha 6, Czech Republic; ICN2-Institut Català de Nanociència i Nanotecnologia, Campus Universitat Autònoma de Barcelona , E–08193 Bellaterra, SpainInstitute of Physics, Academy of Sciences of the Czech Republic , v.v.i., CZ–16253 Praha 6, Czech Republic; School of Physics and Astronomy, University of Nottingham , NG7 2RD Nottingham, UKFaculty of Mathematics and Physics, Charles University in Prague , CZ–12116 Praha 2, Czech RepublicMagneto-structural phase transition in FeRh epitaxial layers was studied optically. It is shown that the transition between the low-temperature antiferromagnetic phase and the high-temperature ferromagnetic phase is accompanied by a rather large change of the optical response in the visible and near-infrared spectral ranges. This change is consistent with ab initio calculations of reflectivity and transmittance. Phase transition temperatures in a series of FeRh films with thicknesses ranging from 6 to 100 nm is measured thereby demonstrating the utility of the method to quickly characterise samples. Spatially resolved imaging of their magnetic properties with a micrometer resolution shows that the phase transition occurs at different temperatures in different parts of the sample.https://doi.org/10.1088/1367-2630/18/8/083017antiferromagnetphase transitionoptical permittivity |
| spellingShingle | V Saidl M Brajer L Horák H Reichlová K Výborný M Veis T Janda F Trojánek M Maryško I Fina X Marti T Jungwirth P Němec Investigation of magneto-structural phase transition in FeRh by reflectivity and transmittance measurements in visible and near-infrared spectral region New Journal of Physics antiferromagnet phase transition optical permittivity |
| title | Investigation of magneto-structural phase transition in FeRh by reflectivity and transmittance measurements in visible and near-infrared spectral region |
| title_full | Investigation of magneto-structural phase transition in FeRh by reflectivity and transmittance measurements in visible and near-infrared spectral region |
| title_fullStr | Investigation of magneto-structural phase transition in FeRh by reflectivity and transmittance measurements in visible and near-infrared spectral region |
| title_full_unstemmed | Investigation of magneto-structural phase transition in FeRh by reflectivity and transmittance measurements in visible and near-infrared spectral region |
| title_short | Investigation of magneto-structural phase transition in FeRh by reflectivity and transmittance measurements in visible and near-infrared spectral region |
| title_sort | investigation of magneto structural phase transition in ferh by reflectivity and transmittance measurements in visible and near infrared spectral region |
| topic | antiferromagnet phase transition optical permittivity |
| url | https://doi.org/10.1088/1367-2630/18/8/083017 |
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