Investigation of exchange coupled bilayer Fe/CuMnAs by pump-probe experiment
Time-resolved pump-probe magneto-optical method was used to study Fe/CuMnAs bilayer. The probe polarization dependence was used to identify and separate parts of detected signals due to Faraday and Voigt magneto-optical effects that provide information about pump-induced magnetization precession in...
| Main Authors: | , , , , , , , |
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| Format: | Article |
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Wiley
2017
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| Online Access: | https://eprints.nottingham.ac.uk/42392/ |
| _version_ | 1848796476902211584 |
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| author | Saidl, V. Němec, P. Wadley, P. Edmonds, K.W. Campion, R.P. Novák, V. Gallagher, B.L. Trojánek, F. |
| author_facet | Saidl, V. Němec, P. Wadley, P. Edmonds, K.W. Campion, R.P. Novák, V. Gallagher, B.L. Trojánek, F. |
| author_sort | Saidl, V. |
| building | Nottingham Research Data Repository |
| collection | Online Access |
| description | Time-resolved pump-probe magneto-optical method was used to study Fe/CuMnAs bilayer. The probe polarization dependence was used to identify and separate parts of detected signals due to Faraday and Voigt magneto-optical effects that provide information about pump-induced magnetization precession in ferromagnetic (FM) Fe and demagnetization in antiferromagnetic (AF) CuMnAs layers, respectively. We observed a 180 deg phase shift in the precession signal at non-zero magnetic field that we interpreted as a signature of the magnetic anisotropy induced in the FM by the adjacent AF layer. Unlike in x-ray magnetic linear dichroism experiments, we did not observe any significant reorientation of magnetic moments in CuMnAs by external magnetic field due to the interlayer exchange coupling with Fe. Differences between these two experimental techniques, providing the distinct pictures, are discussed. |
| first_indexed | 2025-11-14T19:48:36Z |
| format | Article |
| id | nottingham-42392 |
| institution | University of Nottingham Malaysia Campus |
| institution_category | Local University |
| last_indexed | 2025-11-14T19:48:36Z |
| publishDate | 2017 |
| publisher | Wiley |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | nottingham-423922020-05-04T18:34:05Z https://eprints.nottingham.ac.uk/42392/ Investigation of exchange coupled bilayer Fe/CuMnAs by pump-probe experiment Saidl, V. Němec, P. Wadley, P. Edmonds, K.W. Campion, R.P. Novák, V. Gallagher, B.L. Trojánek, F. Time-resolved pump-probe magneto-optical method was used to study Fe/CuMnAs bilayer. The probe polarization dependence was used to identify and separate parts of detected signals due to Faraday and Voigt magneto-optical effects that provide information about pump-induced magnetization precession in ferromagnetic (FM) Fe and demagnetization in antiferromagnetic (AF) CuMnAs layers, respectively. We observed a 180 deg phase shift in the precession signal at non-zero magnetic field that we interpreted as a signature of the magnetic anisotropy induced in the FM by the adjacent AF layer. Unlike in x-ray magnetic linear dichroism experiments, we did not observe any significant reorientation of magnetic moments in CuMnAs by external magnetic field due to the interlayer exchange coupling with Fe. Differences between these two experimental techniques, providing the distinct pictures, are discussed. Wiley 2017-02-21 Article PeerReviewed Saidl, V., Němec, P., Wadley, P., Edmonds, K.W., Campion, R.P., Novák, V., Gallagher, B.L. and Trojánek, F. (2017) Investigation of exchange coupled bilayer Fe/CuMnAs by pump-probe experiment. Physica Status Solidi. Rapid Research Letters, 11 (4). pp. 1-5. ISSN 1862-6270 exchange coupling antiferromagnets CuMnAs Fe ultrafast laser spectroscopy pump–probe technique http://onlinelibrary.wiley.com/doi/10.1002/pssr.201600441/abstract doi:10.1002/pssr.201600441 doi:10.1002/pssr.201600441 |
| spellingShingle | exchange coupling antiferromagnets CuMnAs Fe ultrafast laser spectroscopy pump–probe technique Saidl, V. Němec, P. Wadley, P. Edmonds, K.W. Campion, R.P. Novák, V. Gallagher, B.L. Trojánek, F. Investigation of exchange coupled bilayer Fe/CuMnAs by pump-probe experiment |
| title | Investigation of exchange coupled bilayer Fe/CuMnAs by
pump-probe experiment |
| title_full | Investigation of exchange coupled bilayer Fe/CuMnAs by
pump-probe experiment |
| title_fullStr | Investigation of exchange coupled bilayer Fe/CuMnAs by
pump-probe experiment |
| title_full_unstemmed | Investigation of exchange coupled bilayer Fe/CuMnAs by
pump-probe experiment |
| title_short | Investigation of exchange coupled bilayer Fe/CuMnAs by
pump-probe experiment |
| title_sort | investigation of exchange coupled bilayer fe/cumnas by
pump-probe experiment |
| topic | exchange coupling antiferromagnets CuMnAs Fe ultrafast laser spectroscopy pump–probe technique |
| url | https://eprints.nottingham.ac.uk/42392/ https://eprints.nottingham.ac.uk/42392/ https://eprints.nottingham.ac.uk/42392/ |