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Magneto-optical spectroscopy of ferromagnetic shape-memory Ni-Mn-Ga alloy
Magneto-optical properties of single crystal of Ni50.1Mn28.4Ga21.5 magnetic shape memory alloy in martensite and austenite phase were systematically studied. Crystal orientation was approximately along {100} planes of parent cubic austenite. At room temperature, the sample was in modulated 10M marte...
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| Published in: | Journal of applied physics 2014-05, Vol.115 (17) |
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| Main Authors: | , , , , , , , |
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| Language: | English |
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| container_issue | 17 |
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| container_title | Journal of applied physics |
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| creator | Veis, M. Beran, L. Zahradnik, M. Antos, R. Straka, L. Kopecek, J. Fekete, L. Heczko, O. |
| description | Magneto-optical properties of single crystal of Ni50.1Mn28.4Ga21.5 magnetic shape memory alloy in martensite and austenite phase were systematically studied. Crystal orientation was approximately along {100} planes of parent cubic austenite. At room temperature, the sample was in modulated 10M martensite phase and transformed to cubic austenite at 323 K. Spectral dependence of polar magneto-optical Kerr effect was obtained by generalized magneto-optical ellipsometry with rotating analyzer in the photon energy range from 1.2 to 4 eV, and from room temperature to temperature above the Curie point. The Kerr rotation spectra exhibit prominent features typical for complexes containing Mn atoms. Significant spectral changes during transformation to austenite can be explained by different optical properties caused by changes in density of states near the Fermi energy. |
| doi_str_mv | 10.1063/1.4867754 |
| format | article |
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Crystal orientation was approximately along {100} planes of parent cubic austenite. At room temperature, the sample was in modulated 10M martensite phase and transformed to cubic austenite at 323 K. Spectral dependence of polar magneto-optical Kerr effect was obtained by generalized magneto-optical ellipsometry with rotating analyzer in the photon energy range from 1.2 to 4 eV, and from room temperature to temperature above the Curie point. The Kerr rotation spectra exhibit prominent features typical for complexes containing Mn atoms. Significant spectral changes during transformation to austenite can be explained by different optical properties caused by changes in density of states near the Fermi energy.</description><identifier>ISSN: 0021-8979</identifier><identifier>EISSN: 1089-7550</identifier><identifier>DOI: 10.1063/1.4867754</identifier><language>eng</language><publisher>Melville: American Institute of Physics</publisher><subject>ABSORPTION SPECTROSCOPY ; APPROXIMATIONS ; AUSTENITE ; CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY ; Crystal structure ; CURIE POINT ; Curie temperature ; Dependence ; ELLIPSOMETRY ; Ferromagnetism ; GALLIUM ; INTERMETALLIC COMPOUNDS ; KERR EFFECT ; Kerr magnetooptical effect ; Magnetic properties ; MANGANESE ; MARTENSITE ; Martensitic transformations ; MONOCRYSTALS ; NICKEL ; Nickel base alloys ; Optical memory (data storage) ; OPTICAL PROPERTIES ; PHASE TRANSFORMATIONS ; Phase transitions ; PHOTONS ; ROTATION ; Shape memory alloys ; SHAPE MEMORY EFFECT ; Single crystals ; Spectrum analysis ; Temperature ; TEMPERATURE RANGE 0273-0400 K</subject><ispartof>Journal of applied physics, 2014-05, Vol.115 (17)</ispartof><rights>2014 AIP Publishing LLC.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c285t-cbdd1174718318d0a00c22774bd7471baed46d822ce27924273d8b3e1e3443c43</citedby><cites>FETCH-LOGICAL-c285t-cbdd1174718318d0a00c22774bd7471baed46d822ce27924273d8b3e1e3443c43</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>230,314,780,784,885,27924,27925</link.rule.ids><backlink>$$Uhttps://www.osti.gov/biblio/22273957$$D View this record in Osti.gov$$Hfree_for_read</backlink></links><search><creatorcontrib>Veis, M.</creatorcontrib><creatorcontrib>Beran, L.</creatorcontrib><creatorcontrib>Zahradnik, M.</creatorcontrib><creatorcontrib>Antos, R.</creatorcontrib><creatorcontrib>Straka, L.</creatorcontrib><creatorcontrib>Kopecek, J.</creatorcontrib><creatorcontrib>Fekete, L.</creatorcontrib><creatorcontrib>Heczko, O.</creatorcontrib><title>Magneto-optical spectroscopy of ferromagnetic shape-memory Ni-Mn-Ga alloy</title><title>Journal of applied physics</title><description>Magneto-optical properties of single crystal of Ni50.1Mn28.4Ga21.5 magnetic shape memory alloy in martensite and austenite phase were systematically studied. Crystal orientation was approximately along {100} planes of parent cubic austenite. At room temperature, the sample was in modulated 10M martensite phase and transformed to cubic austenite at 323 K. Spectral dependence of polar magneto-optical Kerr effect was obtained by generalized magneto-optical ellipsometry with rotating analyzer in the photon energy range from 1.2 to 4 eV, and from room temperature to temperature above the Curie point. The Kerr rotation spectra exhibit prominent features typical for complexes containing Mn atoms. Significant spectral changes during transformation to austenite can be explained by different optical properties caused by changes in density of states near the Fermi energy.</description><subject>ABSORPTION SPECTROSCOPY</subject><subject>APPROXIMATIONS</subject><subject>AUSTENITE</subject><subject>CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY</subject><subject>Crystal structure</subject><subject>CURIE POINT</subject><subject>Curie temperature</subject><subject>Dependence</subject><subject>ELLIPSOMETRY</subject><subject>Ferromagnetism</subject><subject>GALLIUM</subject><subject>INTERMETALLIC COMPOUNDS</subject><subject>KERR EFFECT</subject><subject>Kerr magnetooptical effect</subject><subject>Magnetic properties</subject><subject>MANGANESE</subject><subject>MARTENSITE</subject><subject>Martensitic transformations</subject><subject>MONOCRYSTALS</subject><subject>NICKEL</subject><subject>Nickel base alloys</subject><subject>Optical memory (data storage)</subject><subject>OPTICAL PROPERTIES</subject><subject>PHASE TRANSFORMATIONS</subject><subject>Phase transitions</subject><subject>PHOTONS</subject><subject>ROTATION</subject><subject>Shape memory alloys</subject><subject>SHAPE MEMORY EFFECT</subject><subject>Single crystals</subject><subject>Spectrum analysis</subject><subject>Temperature</subject><subject>TEMPERATURE RANGE 0273-0400 K</subject><issn>0021-8979</issn><issn>1089-7550</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2014</creationdate><recordtype>article</recordtype><recordid>eNpFkLFOwzAQhi0EEqUw8AaRmBhcfLYTOyOqoFRqYYHZcmyHpkriYLtD3p6UVmI66fTpu_9-hO6BLIAU7AkWXBZC5PwCzYDIEos8J5doRggFLEtRXqObGPeEAEhWztB6q797lzz2Q2qMbrM4OJOCj8YPY-brrHYh-O4PakwWd3pwuHOdD2P23uBtj1c6023rx1t0Ves2urvznKOv15fP5RvefKzWy-cNNlTmCZvKWgDBxXQfpCWaEEOpELyyx2WlneWFlZQaR0VJORXMyoo5cIxzZjibo4eT18fUqGia5MzO-L6fcis6qViZi39qCP7n4GJSe38I_RRMUaCikGVOj67HE2Wmj2NwtRpC0-kwKiDq2KcCde6T_QIwC2WB</recordid><startdate>20140507</startdate><enddate>20140507</enddate><creator>Veis, M.</creator><creator>Beran, L.</creator><creator>Zahradnik, M.</creator><creator>Antos, R.</creator><creator>Straka, L.</creator><creator>Kopecek, J.</creator><creator>Fekete, L.</creator><creator>Heczko, O.</creator><general>American Institute of Physics</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope><scope>OTOTI</scope></search><sort><creationdate>20140507</creationdate><title>Magneto-optical spectroscopy of ferromagnetic shape-memory Ni-Mn-Ga alloy</title><author>Veis, M. ; 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Crystal orientation was approximately along {100} planes of parent cubic austenite. At room temperature, the sample was in modulated 10M martensite phase and transformed to cubic austenite at 323 K. Spectral dependence of polar magneto-optical Kerr effect was obtained by generalized magneto-optical ellipsometry with rotating analyzer in the photon energy range from 1.2 to 4 eV, and from room temperature to temperature above the Curie point. The Kerr rotation spectra exhibit prominent features typical for complexes containing Mn atoms. Significant spectral changes during transformation to austenite can be explained by different optical properties caused by changes in density of states near the Fermi energy.</abstract><cop>Melville</cop><pub>American Institute of Physics</pub><doi>10.1063/1.4867754</doi></addata></record> |
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| ispartof | Journal of applied physics, 2014-05, Vol.115 (17) |
| issn | 0021-8979 1089-7550 |
| language | eng |
| recordid | cdi_osti_scitechconnect_22273957 |
| source | American Institute of Physics:Jisc Collections:Transitional Journals Agreement 2021-23 (Reading list) |
| subjects | ABSORPTION SPECTROSCOPY APPROXIMATIONS AUSTENITE CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY Crystal structure CURIE POINT Curie temperature Dependence ELLIPSOMETRY Ferromagnetism GALLIUM INTERMETALLIC COMPOUNDS KERR EFFECT Kerr magnetooptical effect Magnetic properties MANGANESE MARTENSITE Martensitic transformations MONOCRYSTALS NICKEL Nickel base alloys Optical memory (data storage) OPTICAL PROPERTIES PHASE TRANSFORMATIONS Phase transitions PHOTONS ROTATION Shape memory alloys SHAPE MEMORY EFFECT Single crystals Spectrum analysis Temperature TEMPERATURE RANGE 0273-0400 K |
| title | Magneto-optical spectroscopy of ferromagnetic shape-memory Ni-Mn-Ga alloy |
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