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Title: Perpendicularly magnetized spin filtering Cu/Ni multilayers

Abstract

Spin filtering at perpendicular magnetized Cu/Ni multilayer/GaAs(001) interfaces is demonstrated at remanence using optical spin orientation method. [Cu(9 nm)/Ni(t{sub Ni} nm)]{sub n} multilayers are found to show a crossover from the in-plane to out-of-plane magnetic anisotropy at the Cu/Ni bilayer repetition n = 4 and the Ni layer thickness t{sub Ni} = 3. For a perpendicularly magnetized Cu/Ni multilayer/n-GaAs(001) interface, circular polarization dependent photocurrent shows a clear hysteretic behavior under optical spin orientation conditions as a function of magnetic field out-of-plane while the bias dependence exhibits a substantial peak at a forward bias, verifying that Cu/Ni multilayers work as an efficient spin filter in the remanent state.

Authors:
; ; ;  [1]
  1. Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori-ku, Yokohama 226-8503 (Japan)
Publication Date:
OSTI Identifier:
22280604
Resource Type:
Journal Article
Journal Name:
Applied Physics Letters
Additional Journal Information:
Journal Volume: 104; Journal Issue: 3; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0003-6951
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ANISOTROPY; COPPER; GALLIUM ARSENIDES; INTERFACES; LAYERS; MAGNETIC FIELDS; NICKEL; POLARIZATION; SPIN; SPIN ORIENTATION

Citation Formats

Shirahata, Yasuhiro, Wada, Eiji, Itoh, Mitsuru, and Taniyama, Tomoyasu. Perpendicularly magnetized spin filtering Cu/Ni multilayers. United States: N. p., 2014. Web. doi:10.1063/1.4862969.
Shirahata, Yasuhiro, Wada, Eiji, Itoh, Mitsuru, & Taniyama, Tomoyasu. Perpendicularly magnetized spin filtering Cu/Ni multilayers. United States. https://doi.org/10.1063/1.4862969
Shirahata, Yasuhiro, Wada, Eiji, Itoh, Mitsuru, and Taniyama, Tomoyasu. 2014. "Perpendicularly magnetized spin filtering Cu/Ni multilayers". United States. https://doi.org/10.1063/1.4862969.
@article{osti_22280604,
title = {Perpendicularly magnetized spin filtering Cu/Ni multilayers},
author = {Shirahata, Yasuhiro and Wada, Eiji and Itoh, Mitsuru and Taniyama, Tomoyasu},
abstractNote = {Spin filtering at perpendicular magnetized Cu/Ni multilayer/GaAs(001) interfaces is demonstrated at remanence using optical spin orientation method. [Cu(9 nm)/Ni(t{sub Ni} nm)]{sub n} multilayers are found to show a crossover from the in-plane to out-of-plane magnetic anisotropy at the Cu/Ni bilayer repetition n = 4 and the Ni layer thickness t{sub Ni} = 3. For a perpendicularly magnetized Cu/Ni multilayer/n-GaAs(001) interface, circular polarization dependent photocurrent shows a clear hysteretic behavior under optical spin orientation conditions as a function of magnetic field out-of-plane while the bias dependence exhibits a substantial peak at a forward bias, verifying that Cu/Ni multilayers work as an efficient spin filter in the remanent state.},
doi = {10.1063/1.4862969},
url = {https://www.osti.gov/biblio/22280604}, journal = {Applied Physics Letters},
issn = {0003-6951},
number = 3,
volume = 104,
place = {United States},
year = {Mon Jan 20 00:00:00 EST 2014},
month = {Mon Jan 20 00:00:00 EST 2014}
}