Anomalous Anisotropic Magnetoresistance of Antiferromagnetic Epitaxial Bimetallic Films: Mn2Au and Mn2Au/Fe Bilayers

Han Chun Wu; Mohamed Abid; Alan Kalitsov; Pavel Zarzhitsky; Mourad Abid; Zhi Min Liao; Cormac Coileáin; Hongjun Xu; Jing Jing Wang; Huajun Liu; Oleg N. Mryasov; Ching Ray Chang; Igor V. Shvets

doi:10.1002/adfm.201601348

Anomalous Anisotropic Magnetoresistance of Antiferromagnetic Epitaxial Bimetallic Films: Mn₂Au and Mn₂Au/Fe Bilayers

Han Chun Wu^*, Mohamed Abid, Alan Kalitsov, Pavel Zarzhitsky, Mourad Abid, Zhi Min Liao, Cormac Coileáin, Hongjun Xu, Jing Jing Wang, Huajun Liu, Oleg N. Mryasov, Ching Ray Chang, Igor V. Shvets

^*此作品的通讯作者

物理学院

科研成果: 期刊稿件 › 文章 › 同行评审

18 引用（Scopus）

摘要

Recently intensive efforts have been devoted to the emerging field of antiferromagnetic (AFM) spintronics, where ferromagnetic electrodes are substituted by antiferromagnets. This study investigates the anisotropic magnetoresistance (AMR) of epitaxial tetragonal antiferromagnetic bimetallic films: Mn₂Au and Mn₂Au/Fe bilayers. An anomalous AMR effect with additional peaks is observed. This study theoretically and experimentally demonstrates that the AFM spins of Mn₂Au can be viewed and controlled at room temperature, and this is achievable with a notably relatively small magnetic field of 200 mT. Strong hybridization between Au and Mn, and strong modification of the intrinsic quadratic anisotropy of Mn₂Au from interfacial biquadratic anisotropy result in an additional anomalous AMR component of 1%. The findings suggest that Mn₂Au films can be used in room temperature antiferromagnetic spintronics.

源语言	英语
页（从-至）	5884-5892
页数	9
期刊	Advanced Functional Materials
卷	26
期	32
DOI	https://doi.org/10.1002/adfm.201601348
出版状态	已出版 - 23 8月 2016

访问文件

10.1002/adfm.201601348

其它文件与链接

链接到 Scopus 的出版物

引用此

Wu, H. C., Abid, M., Kalitsov, A., Zarzhitsky, P., Abid, M., Liao, Z. M., Coileáin, C., Xu, H., Wang, J. J., Liu, H., Mryasov, O. N., Chang, C. R., & Shvets, I. V. (2016). Anomalous Anisotropic Magnetoresistance of Antiferromagnetic Epitaxial Bimetallic Films: Mn₂Au and Mn₂Au/Fe Bilayers. Advanced Functional Materials, 26(32), 5884-5892. https://doi.org/10.1002/adfm.201601348

@article{c38b5bb5d42a4385864778433c43bdcb,

title = "Anomalous Anisotropic Magnetoresistance of Antiferromagnetic Epitaxial Bimetallic Films: Mn2Au and Mn2Au/Fe Bilayers",

abstract = "Recently intensive efforts have been devoted to the emerging field of antiferromagnetic (AFM) spintronics, where ferromagnetic electrodes are substituted by antiferromagnets. This study investigates the anisotropic magnetoresistance (AMR) of epitaxial tetragonal antiferromagnetic bimetallic films: Mn2Au and Mn2Au/Fe bilayers. An anomalous AMR effect with additional peaks is observed. This study theoretically and experimentally demonstrates that the AFM spins of Mn2Au can be viewed and controlled at room temperature, and this is achievable with a notably relatively small magnetic field of 200 mT. Strong hybridization between Au and Mn, and strong modification of the intrinsic quadratic anisotropy of Mn2Au from interfacial biquadratic anisotropy result in an additional anomalous AMR component of 1%. The findings suggest that Mn2Au films can be used in room temperature antiferromagnetic spintronics.",

keywords = "MBE, anisotropic magnetoresistance, antiferromagnetic spintronics, bimetallic antiferromagnet, spin–orbit coupling",

author = "Wu, {Han Chun} and Mohamed Abid and Alan Kalitsov and Pavel Zarzhitsky and Mourad Abid and Liao, {Zhi Min} and Cormac Coile{\'a}in and Hongjun Xu and Wang, {Jing Jing} and Huajun Liu and Mryasov, {Oleg N.} and Chang, {Ching Ray} and Shvets, {Igor V.}",

note = "Publisher Copyright: {\textcopyright} 2016 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

year = "2016",

month = aug,

day = "23",

doi = "10.1002/adfm.201601348",

language = "English",

volume = "26",

pages = "5884--5892",

journal = "Advanced Functional Materials",

issn = "1616-301X",

publisher = "Wiley-VCH Verlag",

number = "32",

}

Wu, HC, Abid, M, Kalitsov, A, Zarzhitsky, P, Abid, M, Liao, ZM, Coileáin, C, Xu, H, Wang, JJ, Liu, H, Mryasov, ON, Chang, CR & Shvets, IV 2016, 'Anomalous Anisotropic Magnetoresistance of Antiferromagnetic Epitaxial Bimetallic Films: Mn₂Au and Mn₂Au/Fe Bilayers', Advanced Functional Materials, 卷 26, 号码 32, 页码 5884-5892. https://doi.org/10.1002/adfm.201601348

TY - JOUR

T1 - Anomalous Anisotropic Magnetoresistance of Antiferromagnetic Epitaxial Bimetallic Films

T2 - Mn2Au and Mn2Au/Fe Bilayers

AU - Wu, Han Chun

AU - Abid, Mohamed

AU - Kalitsov, Alan

AU - Zarzhitsky, Pavel

AU - Abid, Mourad

AU - Liao, Zhi Min

AU - Coileáin, Cormac

AU - Xu, Hongjun

AU - Wang, Jing Jing

AU - Liu, Huajun

AU - Mryasov, Oleg N.

AU - Chang, Ching Ray

AU - Shvets, Igor V.

PY - 2016/8/23

Y1 - 2016/8/23

N2 - Recently intensive efforts have been devoted to the emerging field of antiferromagnetic (AFM) spintronics, where ferromagnetic electrodes are substituted by antiferromagnets. This study investigates the anisotropic magnetoresistance (AMR) of epitaxial tetragonal antiferromagnetic bimetallic films: Mn2Au and Mn2Au/Fe bilayers. An anomalous AMR effect with additional peaks is observed. This study theoretically and experimentally demonstrates that the AFM spins of Mn2Au can be viewed and controlled at room temperature, and this is achievable with a notably relatively small magnetic field of 200 mT. Strong hybridization between Au and Mn, and strong modification of the intrinsic quadratic anisotropy of Mn2Au from interfacial biquadratic anisotropy result in an additional anomalous AMR component of 1%. The findings suggest that Mn2Au films can be used in room temperature antiferromagnetic spintronics.

AB - Recently intensive efforts have been devoted to the emerging field of antiferromagnetic (AFM) spintronics, where ferromagnetic electrodes are substituted by antiferromagnets. This study investigates the anisotropic magnetoresistance (AMR) of epitaxial tetragonal antiferromagnetic bimetallic films: Mn2Au and Mn2Au/Fe bilayers. An anomalous AMR effect with additional peaks is observed. This study theoretically and experimentally demonstrates that the AFM spins of Mn2Au can be viewed and controlled at room temperature, and this is achievable with a notably relatively small magnetic field of 200 mT. Strong hybridization between Au and Mn, and strong modification of the intrinsic quadratic anisotropy of Mn2Au from interfacial biquadratic anisotropy result in an additional anomalous AMR component of 1%. The findings suggest that Mn2Au films can be used in room temperature antiferromagnetic spintronics.

KW - MBE

KW - anisotropic magnetoresistance

KW - antiferromagnetic spintronics

KW - bimetallic antiferromagnet

KW - spin–orbit coupling

UR - http://www.scopus.com/inward/record.url?scp=84978280146&partnerID=8YFLogxK

U2 - 10.1002/adfm.201601348

DO - 10.1002/adfm.201601348

M3 - Article

AN - SCOPUS:84978280146

SN - 1616-301X

VL - 26

SP - 5884

EP - 5892

JO - Advanced Functional Materials

JF - Advanced Functional Materials

IS - 32

ER -

Anomalous Anisotropic Magnetoresistance of Antiferromagnetic Epitaxial Bimetallic Films: Mn2Au and Mn2Au/Fe Bilayers

摘要

访问文件

其它文件与链接

指纹

引用此

Anomalous Anisotropic Magnetoresistance of Antiferromagnetic Epitaxial Bimetallic Films: Mn₂Au and Mn₂Au/Fe Bilayers