Magnetotransport properties of Fe sub(48) Mn sub(24) Ga sub(28) Heusler alloys
Magnetotransport properties of an Fe sub(48) Mn sub(24) Ga sub(28) Heusler-based ferromagnetic shape memory alloy are tracked in a temperature interval that covers both martensitic and austenitic phases. A large temperature hysteresis indicative of a coupled magnetostructural transition from ferroma...
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| Veröffentlicht in: | Physical review. B, Condensed matter and materials physics Condensed matter and materials physics, 2013-05, Vol.87 (17) |
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| container_title | Physical review. B, Condensed matter and materials physics |
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| creator | Khovaylo, V V Omori, T Endo, K Xu, X Kainuma, R Kazakov, A P Prudnikov, V N Gan'shina, E A Novikov, A I Mikhailovsky, Yu O Mettus, D E Granovsky, A B |
| description | Magnetotransport properties of an Fe sub(48) Mn sub(24) Ga sub(28) Heusler-based ferromagnetic shape memory alloy are tracked in a temperature interval that covers both martensitic and austenitic phases. A large temperature hysteresis indicative of a coupled magnetostructural transition from ferromagnetic martensite to paramagnetic austenite is observed on the temperature dependencies of magnetization and electrical resistivity. The temperature dependency of the anomalous Hall-effect coefficient in Fe sub(48) Mn sub(24) Ga sub(28) cannot be described in terms of skew scattering, side-jump, and intrinsic mechanisms of the anomalous Hall-effect theory. The Hall-effect resistivity in the martensitic state is smaller, but is of the same order of magnitude as in the case of the giant Hall effect in a half-metallic Co sub(2) MnAl. Specific features of the temperature dependencies of magnetization, resistivity, magnetoresistance, and ordinary and anomalous Hall-effect coefficients are discussed and the possible routes for increasing Hall-effect resistivity are suggested. |
| format | Article |
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A large temperature hysteresis indicative of a coupled magnetostructural transition from ferromagnetic martensite to paramagnetic austenite is observed on the temperature dependencies of magnetization and electrical resistivity. The temperature dependency of the anomalous Hall-effect coefficient in Fe sub(48) Mn sub(24) Ga sub(28) cannot be described in terms of skew scattering, side-jump, and intrinsic mechanisms of the anomalous Hall-effect theory. The Hall-effect resistivity in the martensitic state is smaller, but is of the same order of magnitude as in the case of the giant Hall effect in a half-metallic Co sub(2) MnAl. Specific features of the temperature dependencies of magnetization, resistivity, magnetoresistance, and ordinary and anomalous Hall-effect coefficients are discussed and the possible routes for increasing Hall-effect resistivity are suggested.</description><identifier>ISSN: 1098-0121</identifier><identifier>EISSN: 1550-235X</identifier><language>eng</language><subject>Coefficients ; Condensed matter ; Electrical resistivity ; Ferromagnetism ; Intervals ; Magnetic properties ; Magnetization ; Transport properties</subject><ispartof>Physical review. 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B, Condensed matter and materials physics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Khovaylo, V V</au><au>Omori, T</au><au>Endo, K</au><au>Xu, X</au><au>Kainuma, R</au><au>Kazakov, A P</au><au>Prudnikov, V N</au><au>Gan'shina, E A</au><au>Novikov, A I</au><au>Mikhailovsky, Yu O</au><au>Mettus, D E</au><au>Granovsky, A B</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Magnetotransport properties of Fe sub(48) Mn sub(24) Ga sub(28) Heusler alloys</atitle><jtitle>Physical review. B, Condensed matter and materials physics</jtitle><date>2013-05-01</date><risdate>2013</risdate><volume>87</volume><issue>17</issue><issn>1098-0121</issn><eissn>1550-235X</eissn><abstract>Magnetotransport properties of an Fe sub(48) Mn sub(24) Ga sub(28) Heusler-based ferromagnetic shape memory alloy are tracked in a temperature interval that covers both martensitic and austenitic phases. A large temperature hysteresis indicative of a coupled magnetostructural transition from ferromagnetic martensite to paramagnetic austenite is observed on the temperature dependencies of magnetization and electrical resistivity. The temperature dependency of the anomalous Hall-effect coefficient in Fe sub(48) Mn sub(24) Ga sub(28) cannot be described in terms of skew scattering, side-jump, and intrinsic mechanisms of the anomalous Hall-effect theory. The Hall-effect resistivity in the martensitic state is smaller, but is of the same order of magnitude as in the case of the giant Hall effect in a half-metallic Co sub(2) MnAl. Specific features of the temperature dependencies of magnetization, resistivity, magnetoresistance, and ordinary and anomalous Hall-effect coefficients are discussed and the possible routes for increasing Hall-effect resistivity are suggested.</abstract></addata></record> |
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| source | American Physical Society Journals |
| subjects | Coefficients Condensed matter Electrical resistivity Ferromagnetism Intervals Magnetic properties Magnetization Transport properties |
| title | Magnetotransport properties of Fe sub(48) Mn sub(24) Ga sub(28) Heusler alloys |
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