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

doi:10.1109/NMDC.2006.4388923

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 proceeding › Conference 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 language	English
Title of host publication	2006 IEEE Nanotechnology Materials and Devices Conference, NMDC
Pages	602-603
Number of pages	2
DOIs	https://doi.org/10.1109/NMDC.2006.4388923
Publication status	Published - 2006
Event	2006 IEEE Nanotechnology Materials and Devices Conference, NMDC - Gyeongju, Korea, Republic of Duration: 2006 Oct 22 → 2006 Oct 25

Publication series

Name	2006 IEEE Nanotechnology Materials and Devices Conference, NMDC
Volume	1

Other

Other	2006 IEEE Nanotechnology Materials and Devices Conference, NMDC
Country/Territory	Korea, Republic of
City	Gyeongju
Period	06/10/22 → 06/10/25

Keywords

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

ASJC Scopus subject areas

Electrical and Electronic Engineering
General Materials Science

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10.1109/NMDC.2006.4388923

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Effect of intervening ferromagnet on spin accumulation in Py/Au/Py spin valve device. / Ku, Janghae; Chang, Joonyeon; Eom, Jonghwa et al.
2006 IEEE Nanotechnology Materials and Devices Conference, NMDC. 2006. p. 602-603 4388923 (2006 IEEE Nanotechnology Materials and Devices Conference, NMDC; Vol. 1).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Ku, J, Chang, J, Eom, J, Han, SH & 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., 4388923, 2006 IEEE Nanotechnology Materials and Devices Conference, NMDC, vol. 1, pp. 602-603, 2006 IEEE Nanotechnology Materials and Devices Conference, NMDC, Gyeongju, Korea, Republic of, 06/10/22. https://doi.org/10.1109/NMDC.2006.4388923

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title = "Effect of intervening ferromagnet on spin accumulation in Py/Au/Py spin valve device",

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.",

keywords = "Intervening ferromagnet, Nonlocal spin signal, Spin accumulation, Spin injection, Spin valve device",

author = "Janghae Ku and Joonyeon Chang and Jonghwa Eom and Han, {Suk Hee} and Gyutae Kim",

year = "2006",

doi = "10.1109/NMDC.2006.4388923",

language = "English",

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series = "2006 IEEE Nanotechnology Materials and Devices Conference, NMDC",

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T1 - Effect of intervening ferromagnet on spin accumulation in Py/Au/Py spin valve device

AU - Ku, Janghae

AU - Chang, Joonyeon

AU - Eom, Jonghwa

AU - Han, Suk Hee

AU - Kim, Gyutae

PY - 2006

Y1 - 2006

N2 - 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.

AB - 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.

KW - Intervening ferromagnet

KW - Nonlocal spin signal

KW - Spin accumulation

KW - Spin injection

KW - Spin valve device

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

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Keywords

ASJC Scopus subject areas

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