Method for inducing spin current on diluted magnetic semiconductor surface and detecting signal of spin current and application of method

Method for inducing spin current on diluted magnetic semiconductor surface and detecting signal of spin current and application of method

The invention discloses a method for inducing a spin current on the surface of a diluted magnetic semiconductor and detecting a signal of the spin current and application of the method, relates to the field of photoelectric detection, and is suitable for a diluted magnetic semiconductor material wit...

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Hauptverfasser: WU DINGZHANG, LIU HANBAO, WANG CHONG, WEI HUA, DUAN ZHUOCHEN, ZHANG WENHUA, YE SHUMING, LU CHUNJIANG, YANG JIE
Format: Patent
Sprache:chi ; eng
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INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
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creator WU DINGZHANG
LIU HANBAO
WANG CHONG
WEI HUA
DUAN ZHUOCHEN
ZHANG WENHUA
YE SHUMING
LU CHUNJIANG
YANG JIE
description The invention discloses a method for inducing a spin current on the surface of a diluted magnetic semiconductor and detecting a signal of the spin current and application of the method, relates to the field of photoelectric detection, and is suitable for a diluted magnetic semiconductor material with a relatively strong spin-orbit coupling effect. The method comprises the following steps: depositing a Pt metal layer on the surface of a diluted magnetic semiconductor material to cover a sample, depositing a pair of Ag electrodes on the surface of the Pt metal layer, irradiating the surface of the deposited Pt metal layer with circularly polarized laser at a non-vertical incidence angle, finally changing the circular polarization degree of circularly polarized light, and collecting a photocurrent signal on the surface of the deposited metal layer. The invention also provides an application of the method in photoelectric detection. The method disclosed by the invention is simple and convenient to operate, wide i
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subjects INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES
MEASURING
PHYSICS
TESTING
title Method for inducing spin current on diluted magnetic semiconductor surface and detecting signal of spin current and application of method
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