Effects of HfO2/Co interface and Co/HfO2 interface on anomalous Hall behavior in perpendicular Co/Pt multilayers

Shao Long Jiang; Guang Yang; Jiao Teng; Qi Xun Guo; Yi Wei Liu; Xu Jing Li; Guang Hua Yu

doi:10.1016/j.jmmm.2017.02.049

Effects of HfO₂/Co interface and Co/HfO₂ interface on anomalous Hall behavior in perpendicular Co/Pt multilayers

Shao Long Jiang
, Guang Yang
, Jiao Teng^*
, Qi Xun Guo
, Yi Wei Liu
, Xu Jing Li
, Guang Hua Yu

^*Corresponding author for this work

Peking University
University of Science and Technology Beijing

Research output: Contribution to journal › Article › peer-review

6 Scopus citations

Abstract

Effects of the HfO₂/Co interface and the Co/HfO₂ interface on thermal stability of anomalous Hall effect (AHE) in perpendicular Co/Pt multilayers have been studied. It is observed that thermally stable AHE behavior cannot be obtained in perpendicular Co/Pt multilayers with the HfO₂/Co interface, mainly due to Co-Pt interdiffusion during annealing. In contrast, thermally stable AHE feature is observed in perpendicular Co/Pt multilayers with the Co/HfO₂ interface despite Co-Pt interdiffusion, which is owing to the enhancement of the side jump and intrinsic contributions to the AHE through interfacial modification after annealing.

Original language	English
Pages (from-to)	42-46
Number of pages	5
Journal	Journal of Magnetism and Magnetic Materials
Volume	433
DOIs	https://doi.org/10.1016/j.jmmm.2017.02.049
State	Published - 1 Jul 2017
Externally published	Yes

Keywords

Anomalous Hall effect
Perpendicular Co/Pt multilayers
Thermal stability

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10.1016/j.jmmm.2017.02.049

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title = "Effects of HfO2/Co interface and Co/HfO2 interface on anomalous Hall behavior in perpendicular Co/Pt multilayers",

abstract = "Effects of the HfO2/Co interface and the Co/HfO2 interface on thermal stability of anomalous Hall effect (AHE) in perpendicular Co/Pt multilayers have been studied. It is observed that thermally stable AHE behavior cannot be obtained in perpendicular Co/Pt multilayers with the HfO2/Co interface, mainly due to Co-Pt interdiffusion during annealing. In contrast, thermally stable AHE feature is observed in perpendicular Co/Pt multilayers with the Co/HfO2 interface despite Co-Pt interdiffusion, which is owing to the enhancement of the side jump and intrinsic contributions to the AHE through interfacial modification after annealing.",

keywords = "Anomalous Hall effect, Perpendicular Co/Pt multilayers, Thermal stability",

author = "Jiang, \{Shao Long\} and Guang Yang and Jiao Teng and Guo, \{Qi Xun\} and Liu, \{Yi Wei\} and Li, \{Xu Jing\} and Yu, \{Guang Hua\}",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2017",

month = jul,

day = "1",

doi = "10.1016/j.jmmm.2017.02.049",

language = "英语",

volume = "433",

pages = "42--46",

journal = "Journal of Magnetism and Magnetic Materials",

issn = "0304-8853",

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TY - JOUR

T1 - Effects of HfO2/Co interface and Co/HfO2 interface on anomalous Hall behavior in perpendicular Co/Pt multilayers

AU - Jiang, Shao Long

AU - Yang, Guang

AU - Teng, Jiao

AU - Guo, Qi Xun

AU - Liu, Yi Wei

AU - Li, Xu Jing

AU - Yu, Guang Hua

PY - 2017/7/1

Y1 - 2017/7/1

N2 - Effects of the HfO2/Co interface and the Co/HfO2 interface on thermal stability of anomalous Hall effect (AHE) in perpendicular Co/Pt multilayers have been studied. It is observed that thermally stable AHE behavior cannot be obtained in perpendicular Co/Pt multilayers with the HfO2/Co interface, mainly due to Co-Pt interdiffusion during annealing. In contrast, thermally stable AHE feature is observed in perpendicular Co/Pt multilayers with the Co/HfO2 interface despite Co-Pt interdiffusion, which is owing to the enhancement of the side jump and intrinsic contributions to the AHE through interfacial modification after annealing.

AB - Effects of the HfO2/Co interface and the Co/HfO2 interface on thermal stability of anomalous Hall effect (AHE) in perpendicular Co/Pt multilayers have been studied. It is observed that thermally stable AHE behavior cannot be obtained in perpendicular Co/Pt multilayers with the HfO2/Co interface, mainly due to Co-Pt interdiffusion during annealing. In contrast, thermally stable AHE feature is observed in perpendicular Co/Pt multilayers with the Co/HfO2 interface despite Co-Pt interdiffusion, which is owing to the enhancement of the side jump and intrinsic contributions to the AHE through interfacial modification after annealing.

KW - Anomalous Hall effect

KW - Perpendicular Co/Pt multilayers

KW - Thermal stability

UR - https://www.scopus.com/pages/publications/85014364520

U2 - 10.1016/j.jmmm.2017.02.049

DO - 10.1016/j.jmmm.2017.02.049

M3 - 文章

AN - SCOPUS:85014364520

SN - 0304-8853

VL - 433

SP - 42

EP - 46

JO - Journal of Magnetism and Magnetic Materials

JF - Journal of Magnetism and Magnetic Materials

ER -

Effects of HfO₂/Co interface and Co/HfO₂ interface on anomalous Hall behavior in perpendicular Co/Pt multilayers

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