Perpendicular magnetic anisotropy in Mn2CoAl thin film

Heusler compound Mn2CoAl (MCA) is attracting more attentions due to many novel properties, such as high resistance, semiconducting behavior and suggestion as a spin-gapless material with a low magnetic moment. In this work, Mn2CoAl epitaxial thin film was prepared on MgO(100) substrate by magnetron...

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Main Authors: N. Y. Sun, Y. Q. Zhang, H. R. Fu, W. R. Che, C. Y. You, R. Shan
Format: Article
Language:English
Published: AIP Publishing LLC 2016-01-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/1.4939934
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author N. Y. Sun
Y. Q. Zhang
H. R. Fu
W. R. Che
C. Y. You
R. Shan
author_facet N. Y. Sun
Y. Q. Zhang
H. R. Fu
W. R. Che
C. Y. You
R. Shan
author_sort N. Y. Sun
collection DOAJ
description Heusler compound Mn2CoAl (MCA) is attracting more attentions due to many novel properties, such as high resistance, semiconducting behavior and suggestion as a spin-gapless material with a low magnetic moment. In this work, Mn2CoAl epitaxial thin film was prepared on MgO(100) substrate by magnetron sputtering. The transport property of the film exhibits a semiconducting-like behavior. Moreover, our research reveals that perpendicular magnetic anisotropy (PMA) can be induced in very thin Mn2CoAl films resulting from Mn-O and Co-O bonding at Mn2CoAl/MgO interface, which coincides with a recent theoretical prediction. PMA and low saturation magnetic moment could lead to large spin-transfer torque with low current density in principle, and thus our work may bring some unanticipated Heusler compounds into spintronics topics such as the domain wall motion and the current-induced magnetization reversal.
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spelling doaj.art-7f5353816d7148af8ee1f55931316fe02022-12-22T01:41:43ZengAIP Publishing LLCAIP Advances2158-32262016-01-0161015006015006-610.1063/1.4939934023601ADVPerpendicular magnetic anisotropy in Mn2CoAl thin filmN. Y. Sun0Y. Q. Zhang1H. R. Fu2W. R. Che3C. Y. You4R. Shan5Shanghai Key Laboratory of Special Artificial Microstructure and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, ChinaShanghai Key Laboratory of Special Artificial Microstructure and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, ChinaSchool of Materials Science and Engineering, Xi’an University of Technology, Xi’an 710048, PR ChinaShanghai Key Laboratory of Special Artificial Microstructure and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, ChinaSchool of Materials Science and Engineering, Xi’an University of Technology, Xi’an 710048, PR ChinaShanghai Key Laboratory of Special Artificial Microstructure and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai 200092, ChinaHeusler compound Mn2CoAl (MCA) is attracting more attentions due to many novel properties, such as high resistance, semiconducting behavior and suggestion as a spin-gapless material with a low magnetic moment. In this work, Mn2CoAl epitaxial thin film was prepared on MgO(100) substrate by magnetron sputtering. The transport property of the film exhibits a semiconducting-like behavior. Moreover, our research reveals that perpendicular magnetic anisotropy (PMA) can be induced in very thin Mn2CoAl films resulting from Mn-O and Co-O bonding at Mn2CoAl/MgO interface, which coincides with a recent theoretical prediction. PMA and low saturation magnetic moment could lead to large spin-transfer torque with low current density in principle, and thus our work may bring some unanticipated Heusler compounds into spintronics topics such as the domain wall motion and the current-induced magnetization reversal.http://dx.doi.org/10.1063/1.4939934
spellingShingle N. Y. Sun
Y. Q. Zhang
H. R. Fu
W. R. Che
C. Y. You
R. Shan
Perpendicular magnetic anisotropy in Mn2CoAl thin film
AIP Advances
title Perpendicular magnetic anisotropy in Mn2CoAl thin film
title_full Perpendicular magnetic anisotropy in Mn2CoAl thin film
title_fullStr Perpendicular magnetic anisotropy in Mn2CoAl thin film
title_full_unstemmed Perpendicular magnetic anisotropy in Mn2CoAl thin film
title_short Perpendicular magnetic anisotropy in Mn2CoAl thin film
title_sort perpendicular magnetic anisotropy in mn2coal thin film
url http://dx.doi.org/10.1063/1.4939934
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