Anomalous Hall effect in antiferromagnetic/nonmagnetic interfaces

被引：8

作者：

Asa, M. ^{[1
]}

Autieri, C. ^{[2
,3
]}

Pazzocco, R. ^{[1
]}

Rinaldi, C. ^{[1
]}

Brzezicki, W. ^{[3
]}

Stroppa, A. ^{[4
]}

Cuoco, M. ^{[5
]}

Varvaro, G. ^{[6
]}

Picozzi, S. ^{[2
]}

Cantoni, M. ^{[1
]}

机构：

[1] Politecn Milan, Dept Phys, C-O Via G Colombo 81, I-20133 Milan, Italy

[2] Univ G DAnnunzio, Consiglio Nazl Ric CNR SPIN, I-66100 Chieti, Italy

[3] Polish Acad Sci, Int Res Ctr MagTop, Inst Phys, Aleja Lotnikow 32-46, PL-02668 Warsaw, Poland

[4] Univ Aquila, Consiglio Nazl Ric CNR SPIN, I-67100 Laquila, Italy

[5] Univ Salerno, Consiglio Nazl Ric CNR SPIN, Via Giovanni Paolo II,132, I-84084 Fisciano, SA, Italy

[6] Consiglio Nazl Ric CNR ISM, Via Salaria Km 29-300, I-00015 Rome, Italy

来源：

PHYSICAL REVIEW RESEARCH | 2020年 / 2卷 / 04期

关键词：

MAGNETIC-MOMENTS;

D O I：

10.1103/PhysRevResearch.2.043394

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report a combined theoretical and experimental investigation of magnetic proximity and Hall transport in Pt/Cr bilayers. Density-functional theory indicates that interfacial magnetic moments can be induced in the Pt layer and a strong magnetocrystalline anisotropy with an out-of-plane easy axis arises in the antiferromagnet. A signal ascribed to the anomalous Hall effect is detected and associated to the interface between Pt and Cr layers. We discuss how this effect originates from the Berry curvature of the electronic structure at the interface and the correlation with the character of the proximity-induced magnetic moments.

引用

页数：11

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