凝聚态物理
横截面
极化(电化学)
从头算
磁光
物理
霍尔效应
轨道重叠
铬
原子轨道
材料科学
化学
电子
磁场
量子力学
工程类
物理化学
有机化学
结构工程
作者
Igor Lyalin,Sanaz Alikhah,Marco Berritta,Peter M. Oppeneer,Roland Kawakami
出处
期刊:Cornell University - arXiv
日期:2023-01-01
被引量:10
标识
DOI:10.48550/arxiv.2306.10673
摘要
The orbital Hall effect has been theoretically predicted but its direct observation is a challenge. Here, we report the magneto-optical detection of current-induced orbital accumulation at the surface of a light 3d transition metal, Cr. The orbital polarization is in-plane, transverse to the current direction, and scales linearly with current density, consistent with the orbital Hall effect. Comparing the thickness-dependent magneto-optical measurements with ab initio calculations, we estimate an orbital diffusion length in Cr of 6.6±0.6 nm.
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