Ultrahigh anomalous hall sensitivity in Co/Pt multilayers by interfacial modification

Jingyan Zhang; Guang Yang; Shouguo Wang; Shilei Zhang; Peng Zhang; Xingzhong Cao; Shaolong Jiang; Chongjun Zhao; Yang Liu; Haicheng Wang; Guanghua Yu

doi:10.7567/APEX.6.103007

Ultrahigh anomalous hall sensitivity in Co/Pt multilayers by interfacial modification

Jingyan Zhang
, Guang Yang
, Shouguo Wang^*
, Shilei Zhang
, Peng Zhang
, Xingzhong Cao
, Shaolong Jiang
, Chongjun Zhao
, Yang Liu
, Haicheng Wang
, Guanghua Yu

^*此作品的通讯作者

University of Science and Technology Beijing
CAS - Institute of Physics
University of Oxford
CAS - Institute of High Energy Physics

科研成果: 期刊稿件 › 文章 › 同行评审

15 引用（Scopus）

摘要

A large enhancement of anomalous Hall sensitivity (Sv) by metal/oxide interfacial modification is obtained in a MgO/[Co/Pt]₃/MgO multilayered structure. The values of Sv are increased to 8363 V/A·T by CoO insertion and 2261 V/A·T by Pt insertion, while Sv is approximately 1000 V/A·T in normal Hall semiconductor sensors. Microstructural analysis shows that the crystal orientation of [Co/Pt]₃ multilayers is improved, and the oxygen concentration is largely changed by introducing an ultrathin CoO layer at metal/oxide interfaces, leading to a large increment of S_v.

源语言	英语
文章编号	103007
期刊	Applied Physics Express
卷	6
期	10
DOI	https://doi.org/10.7567/APEX.6.103007
出版状态	已出版 - 10月 2013
已对外发布	是

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title = "Ultrahigh anomalous hall sensitivity in Co/Pt multilayers by interfacial modification",

abstract = "A large enhancement of anomalous Hall sensitivity (Sv) by metal/oxide interfacial modification is obtained in a MgO/[Co/Pt]3/MgO multilayered structure. The values of Sv are increased to 8363 V/A·T by CoO insertion and 2261 V/A·T by Pt insertion, while Sv is approximately 1000 V/A·T in normal Hall semiconductor sensors. Microstructural analysis shows that the crystal orientation of [Co/Pt]3 multilayers is improved, and the oxygen concentration is largely changed by introducing an ultrathin CoO layer at metal/oxide interfaces, leading to a large increment of Sv.",

author = "Jingyan Zhang and Guang Yang and Shouguo Wang and Shilei Zhang and Peng Zhang and Xingzhong Cao and Shaolong Jiang and Chongjun Zhao and Yang Liu and Haicheng Wang and Guanghua Yu",

year = "2013",

month = oct,

doi = "10.7567/APEX.6.103007",

language = "英语",

volume = "6",

journal = "Applied Physics Express",

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TY - JOUR

T1 - Ultrahigh anomalous hall sensitivity in Co/Pt multilayers by interfacial modification

AU - Zhang, Jingyan

AU - Yang, Guang

AU - Wang, Shouguo

AU - Zhang, Shilei

AU - Zhang, Peng

AU - Cao, Xingzhong

AU - Jiang, Shaolong

AU - Zhao, Chongjun

AU - Liu, Yang

AU - Wang, Haicheng

AU - Yu, Guanghua

PY - 2013/10

Y1 - 2013/10

N2 - A large enhancement of anomalous Hall sensitivity (Sv) by metal/oxide interfacial modification is obtained in a MgO/[Co/Pt]3/MgO multilayered structure. The values of Sv are increased to 8363 V/A·T by CoO insertion and 2261 V/A·T by Pt insertion, while Sv is approximately 1000 V/A·T in normal Hall semiconductor sensors. Microstructural analysis shows that the crystal orientation of [Co/Pt]3 multilayers is improved, and the oxygen concentration is largely changed by introducing an ultrathin CoO layer at metal/oxide interfaces, leading to a large increment of Sv.

AB - A large enhancement of anomalous Hall sensitivity (Sv) by metal/oxide interfacial modification is obtained in a MgO/[Co/Pt]3/MgO multilayered structure. The values of Sv are increased to 8363 V/A·T by CoO insertion and 2261 V/A·T by Pt insertion, while Sv is approximately 1000 V/A·T in normal Hall semiconductor sensors. Microstructural analysis shows that the crystal orientation of [Co/Pt]3 multilayers is improved, and the oxygen concentration is largely changed by introducing an ultrathin CoO layer at metal/oxide interfaces, leading to a large increment of Sv.

UR - https://www.scopus.com/pages/publications/84887716310

U2 - 10.7567/APEX.6.103007

DO - 10.7567/APEX.6.103007

M3 - 文章

AN - SCOPUS:84887716310

SN - 1882-0778

VL - 6

JO - Applied Physics Express

JF - Applied Physics Express

IS - 10

M1 - 103007

ER -

Ultrahigh anomalous hall sensitivity in Co/Pt multilayers by interfacial modification

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