兰州大学机构库
Anomalous Hall effect in naturally oxidized normal-metal Al/Cu double films
Zhao, Lijuan; Li, Yuzhi; Wang, Yongzuo; Chen, Peng; Lv, Bing; Gao, Cunxu
2024-02-02
Source PublicationJOURNAL OF PHYSICS D-APPLIED PHYSICS   Impact Factor & Quartile
ISSN0022-3727
EISSN1361-6463
Volume57Issue:5
page numbers8
Abstract

An unexpectedly larger current-induced spin-orbit torque in oxidized Cu (CuO x )/ferromagnet (FM) than heavy-metal/FM has recently attracted intense attention in spintronic studies. Although the two mechanisms, interfacial Rashba Edelstein effect and spin-vorticity coupling, have been put forward based on the two different conductive features of CuO x , i.e. electrical insulator and gradient of electrical mobility, the detailed investigation of transport of CuO x is still lacking. Here we experimentally report the positive and negative anomalous Hall effect (AHE) in naturally oxidized normal-metal Al/Cu double films. We found that the onset temperature of AHE corresponds to magnetic transition temperature of CuO x . Furthermore, by comparing Hall resistance of the crystalline and amorphous Cu/Al double films, we identify that the positive anomalous Hall resistance attributes to magnetic moment of CuO x itself, while the negative anomalous Hall resistance can originate from the spin or orbital currents generated at the CuO x /AlO x interface interact with magnetization of CuO x and its inverse process.

KeywordAnomalous Hall Effect Naturally Oxidized Cu Magnetic Transition
PublisherIOP Publishing Ltd
DOI10.1088/1361-6463/ad06ed
Indexed BySCIE ; EI
Language英语
WOS Research AreaPhysics
WOS SubjectPhysics, Applied
WOS IDWOS:001090467900001
EI Accession Number20234715078853
EI KeywordsHeavy metals
EI Classification Number531 Metallurgy and Metallography ; 544.1 Copper ; 701.2 Magnetism: Basic Concepts and Phenomena ; 802.2 Chemical Reactions
Original Document TypeArticle
Citation statistics
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/569620
Collection兰州大学
Corresponding AuthorGao, Cunxu
Affiliation
Lanzhou Univ, Key Lab Magnetism & Magnet Mat, Minist Educ, Lanzhou 730000, Peoples R China
Recommended Citation
GB/T 7714
Zhao, Lijuan,Li, Yuzhi,Wang, Yongzuo,et al. Anomalous Hall effect in naturally oxidized normal-metal Al/Cu double films[J]. JOURNAL OF PHYSICS D-APPLIED PHYSICS,2024,57(5).
APA Zhao, Lijuan,Li, Yuzhi,Wang, Yongzuo,Chen, Peng,Lv, Bing,&Gao, Cunxu.(2024).Anomalous Hall effect in naturally oxidized normal-metal Al/Cu double films.JOURNAL OF PHYSICS D-APPLIED PHYSICS,57(5).
MLA Zhao, Lijuan,et al."Anomalous Hall effect in naturally oxidized normal-metal Al/Cu double films".JOURNAL OF PHYSICS D-APPLIED PHYSICS 57.5(2024).
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