Magnetotransport properties of Cr1−δTe thin films with strong perpendicular magnetic anisotropy

P-type ferromagnetic Cr1-δTe thin films with the Curie temperature of 170K were epitaxially grown on GaAs substrate. Low-temperature magnetotransport study reveals that the film has a strong perpendicular magnetic anisotropy (PMA) and an anisotropic magnetoresistance (AMR) ratio up to 8.1%. Furtherm...

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Main Authors:	L. Zhou, J. S. Chen, Z. Z. Du, X. S. He, B. C. Ye, G. P. Guo, H. Z. Lu, G. Wang, H. T. He
Format:	Article
Language:	English
Published:	AIP Publishing LLC 2017-12-01
Series:	AIP Advances
Online Access:	http://dx.doi.org/10.1063/1.5011405

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spelling	doaj-54137dd3d6e04dcc87c01403b758340a2020-11-24T23:10:45ZengAIP Publishing LLCAIP Advances2158-32262017-12-01712125116125116-810.1063/1.5011405063712ADVMagnetotransport properties of Cr1−δTe thin films with strong perpendicular magnetic anisotropyL. Zhou0J. S. Chen1Z. Z. Du2X. S. He3B. C. Ye4G. P. Guo5H. Z. Lu6G. Wang7H. T. He8Department of Physics, South University of Science and Technology of China, Shenzhen, Guangdong 518055, ChinaDepartment of Physics, South University of Science and Technology of China, Shenzhen, Guangdong 518055, ChinaDepartment of Physics, South University of Science and Technology of China, Shenzhen, Guangdong 518055, ChinaDepartment of Physics, South University of Science and Technology of China, Shenzhen, Guangdong 518055, ChinaDepartment of Physics, South University of Science and Technology of China, Shenzhen, Guangdong 518055, ChinaKey Laboratory of Quantum Information, CAS, University of Science and Technology of China, Hefei 230026, ChinaDepartment of Physics, South University of Science and Technology of China, Shenzhen, Guangdong 518055, ChinaDepartment of Physics, South University of Science and Technology of China, Shenzhen, Guangdong 518055, ChinaDepartment of Physics, South University of Science and Technology of China, Shenzhen, Guangdong 518055, ChinaP-type ferromagnetic Cr1-δTe thin films with the Curie temperature of 170K were epitaxially grown on GaAs substrate. Low-temperature magnetotransport study reveals that the film has a strong perpendicular magnetic anisotropy (PMA) and an anisotropic magnetoresistance (AMR) ratio up to 8.1%. Furthermore, reduced anomalous Hall effect is observed at low temperatures in Cr1-δTe, suggesting the possible crossover of the contribution to AHE from the intrinsic mechanism to extrinsic skew scattering. Distinctive from conventional transition metal ferromagnets, the AMR ratio is also greatly suppressed at low temperatures. Our work demonstrates that epitaxial Cr1-δTe films are interesting platforms for studying the physics underlying the strong PMA and large AMR.http://dx.doi.org/10.1063/1.5011405
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	L. Zhou J. S. Chen Z. Z. Du X. S. He B. C. Ye G. P. Guo H. Z. Lu G. Wang H. T. He
spellingShingle	L. Zhou J. S. Chen Z. Z. Du X. S. He B. C. Ye G. P. Guo H. Z. Lu G. Wang H. T. He Magnetotransport properties of Cr1−δTe thin films with strong perpendicular magnetic anisotropy AIP Advances
author_facet	L. Zhou J. S. Chen Z. Z. Du X. S. He B. C. Ye G. P. Guo H. Z. Lu G. Wang H. T. He
author_sort	L. Zhou
title	Magnetotransport properties of Cr1−δTe thin films with strong perpendicular magnetic anisotropy
title_short	Magnetotransport properties of Cr1−δTe thin films with strong perpendicular magnetic anisotropy
title_full	Magnetotransport properties of Cr1−δTe thin films with strong perpendicular magnetic anisotropy
title_fullStr	Magnetotransport properties of Cr1−δTe thin films with strong perpendicular magnetic anisotropy
title_full_unstemmed	Magnetotransport properties of Cr1−δTe thin films with strong perpendicular magnetic anisotropy
title_sort	magnetotransport properties of cr1−δte thin films with strong perpendicular magnetic anisotropy
publisher	AIP Publishing LLC
series	AIP Advances
issn	2158-3226
publishDate	2017-12-01
description	P-type ferromagnetic Cr1-δTe thin films with the Curie temperature of 170K were epitaxially grown on GaAs substrate. Low-temperature magnetotransport study reveals that the film has a strong perpendicular magnetic anisotropy (PMA) and an anisotropic magnetoresistance (AMR) ratio up to 8.1%. Furthermore, reduced anomalous Hall effect is observed at low temperatures in Cr1-δTe, suggesting the possible crossover of the contribution to AHE from the intrinsic mechanism to extrinsic skew scattering. Distinctive from conventional transition metal ferromagnets, the AMR ratio is also greatly suppressed at low temperatures. Our work demonstrates that epitaxial Cr1-δTe films are interesting platforms for studying the physics underlying the strong PMA and large AMR.
url	http://dx.doi.org/10.1063/1.5011405
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Magnetotransport properties of Cr1−δTe thin films with strong perpendicular magnetic anisotropy

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