2014/04/16 by H. Ikeda, Hideyuki Ikeda, N. Nishizawa +7
Engineering · Physics and Astronomy · #FOS: Physical sciences #Magnetic Field Sensors Techniques #Magnetic properties of thin films #Magneto-Optical Properties and Applications #Optics (physics.optics) #physics.optics
paper · pdf · doi:10.48550/arxiv.1404.4135
4 pages, 4 figures, MORIS-2013 conference
arxiv created 2014/04/16 · openalex publication_date 2014/04/16 · arxiv updated 2014/04/17 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28
Helicity-dependent photocurrent delta-I has been detected successfully under experimental configuration that a circularly polarized light beam is impinged with a right angle on a cleaved sidewall of the Fe/x-AlOx/GaAs-based n-i-p double-heterostructure. The photocurrent delta-I has showed a well-defined hysteresis loop which resembles that of the magnetization of the in-plane magnetized Fe layer in the devices. The value of delta-I has been |delta-I|~0.2 nA at 5 K under the remnant magnetization state. Study on temperature dependence of the relative delta-I value at H = 0 has revealed that it is maximized at temperatures 125 - 150 K, and is still measurable at room temperature.