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Title: Analysis and design of nonlocal spin devices with electric-field-induced spin-transport acceleration

Abstract

We apply electric-field-induced acceleration for spin transport to a four-terminal nonlocal device and theoretically analyze its Hanle-effect signals. The effect of the ferromagnetic contact widths of the spin injector and detector on the signals is carefully discussed. Although Hanle-effect signals are randomized owing to the effect of the contact widths, this can be excluded by selecting an appropriate electric field for acceleration of spin transport. Spin lifetime can be correctly extracted by nonlocal devices with electric-field acceleration even using the spin injector and detector with finite contact widths.

Authors:
 [1];  [2]; ; ;  [1]
  1. Imaging Science and Engineering Laboratory, Tokyo Institute of Technology, Yokohama (Japan)
  2. (Japan)
Publication Date:
OSTI Identifier:
22410116
Resource Type:
Journal Article
Journal Name:
Journal of Applied Physics
Additional Journal Information:
Journal Volume: 117; Journal Issue: 17; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0021-8979
Country of Publication:
United States
Language:
English
Subject:
75 CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; ACCELERATION; DESIGN; ELECTRIC FIELDS; FERROMAGNETISM; LIFETIME; LIGHT TRANSMISSION; MAGNETIC FIELDS; POLARIZATION; SPIN

Citation Formats

Takamura, Yota, E-mail: takamura@spin.pe.titech.ac.jp, Department of Physical Electronics, Tokyo Institute of Technology, Tokyo, Akushichi, Taiju, Shuto, Yusuke, and Sugahara, Satoshi, E-mail: sugahara@isl.titech.ac.jp. Analysis and design of nonlocal spin devices with electric-field-induced spin-transport acceleration. United States: N. p., 2015. Web. doi:10.1063/1.4918635.
Takamura, Yota, E-mail: takamura@spin.pe.titech.ac.jp, Department of Physical Electronics, Tokyo Institute of Technology, Tokyo, Akushichi, Taiju, Shuto, Yusuke, & Sugahara, Satoshi, E-mail: sugahara@isl.titech.ac.jp. Analysis and design of nonlocal spin devices with electric-field-induced spin-transport acceleration. United States. doi:10.1063/1.4918635.
Takamura, Yota, E-mail: takamura@spin.pe.titech.ac.jp, Department of Physical Electronics, Tokyo Institute of Technology, Tokyo, Akushichi, Taiju, Shuto, Yusuke, and Sugahara, Satoshi, E-mail: sugahara@isl.titech.ac.jp. Thu . "Analysis and design of nonlocal spin devices with electric-field-induced spin-transport acceleration". United States. doi:10.1063/1.4918635.
@article{osti_22410116,
title = {Analysis and design of nonlocal spin devices with electric-field-induced spin-transport acceleration},
author = {Takamura, Yota, E-mail: takamura@spin.pe.titech.ac.jp and Department of Physical Electronics, Tokyo Institute of Technology, Tokyo and Akushichi, Taiju and Shuto, Yusuke and Sugahara, Satoshi, E-mail: sugahara@isl.titech.ac.jp},
abstractNote = {We apply electric-field-induced acceleration for spin transport to a four-terminal nonlocal device and theoretically analyze its Hanle-effect signals. The effect of the ferromagnetic contact widths of the spin injector and detector on the signals is carefully discussed. Although Hanle-effect signals are randomized owing to the effect of the contact widths, this can be excluded by selecting an appropriate electric field for acceleration of spin transport. Spin lifetime can be correctly extracted by nonlocal devices with electric-field acceleration even using the spin injector and detector with finite contact widths.},
doi = {10.1063/1.4918635},
journal = {Journal of Applied Physics},
issn = {0021-8979},
number = 17,
volume = 117,
place = {United States},
year = {2015},
month = {5}
}