Effect of intervening ferromagnet on spin accumulation in Py/Au/Py spin valve device

Janghae Ku, Joonyeon Chang, Jonghwa Eom, Suk Hee Han, Gyutae Kim

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Nonlocal spin signal is largely dependent on the resistivity of nonmagnetic channel in spin valve devices. Since the resistivity of channel is subjected to change from sample to sample, it is necessary to keep the resistivity as constant as possible. Multiferromagnetic electrodes on single channel are favorable in order to minimize the variation of the resistivity. There is controversial that intervening ferromagnetic electrode may affect spin signal in such a structure. In this experiment, we fabricated Py/Au/Py spin valve devices with multi Py electrodes and measured series of nonlocal signal in various distances of Pys with or without intervening Py electrode aiming at clarifying the controversy.

Original languageEnglish
Title of host publication2006 IEEE Nanotechnology Materials and Devices Conference, NMDC
Pages602-603
Number of pages2
DOIs
Publication statusPublished - 2006
Event2006 IEEE Nanotechnology Materials and Devices Conference, NMDC - Gyeongju, Korea, Republic of
Duration: 2006 Oct 222006 Oct 25

Publication series

Name2006 IEEE Nanotechnology Materials and Devices Conference, NMDC
Volume1

Other

Other2006 IEEE Nanotechnology Materials and Devices Conference, NMDC
CountryKorea, Republic of
CityGyeongju
Period06/10/2206/10/25

Keywords

  • Intervening ferromagnet
  • Nonlocal spin signal
  • Spin accumulation
  • Spin injection
  • Spin valve device

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Materials Science(all)

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    Ku, J., Chang, J., Eom, J., Han, S. H., & Kim, G. (2006). Effect of intervening ferromagnet on spin accumulation in Py/Au/Py spin valve device. In 2006 IEEE Nanotechnology Materials and Devices Conference, NMDC (pp. 602-603). [4388923] (2006 IEEE Nanotechnology Materials and Devices Conference, NMDC; Vol. 1). https://doi.org/10.1109/NMDC.2006.4388923