Exchange coupling and stability of PtMn-based spin valves

Z. T. Diao; M. Ueno; A. Kojo; H. Nishida; F. Hikami; T. Fukagawa; T. Sawasaki; K. Tabuchi; K. Kamei

doi:10.1109/20.908540

Exchange coupling and stability of PtMn-based spin valves

Z. T. Diao^*, M. Ueno, A. Kojo, H. Nishida, F. Hikami, T. Fukagawa, T. Sawasaki, K. Tabuchi, K. Kamei

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

5 Citations (Scopus)

Abstract

The exchange coupling and stability of spin valves with antiferromagnetic (AF) PtMn films were investigated through the correlation between the magnetic properties and their microstructures. The exchange coupling field (Hex) decreases during iterative MR measurements and this decrease associates closely with the changes in the rotational hysteresis loss (Wr), exchange anisotropy energy (Ke) and blocking temperature (Tb) distribution. Ordering of PtMn films that is featured by antiphase configuration is found to play a significant role in determining the exchange coupling properties and stability of these spin valves.

Original language	English
Pages (from-to)	2632-2634
Number of pages	3
Journal	IEEE Transactions on Magnetics
Volume	36
Issue number	5 I
DOIs	https://doi.org/10.1109/20.908540
Publication status	Published - 2000 Sept
Externally published	Yes

Keywords

Antiferromagnetic Pt-Mn
Exchange coupling
Magnetoresistance and spin valves
Unidirectional anisotropy

ASJC Scopus subject areas

Electrical and Electronic Engineering
Physics and Astronomy (miscellaneous)

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10.1109/20.908540

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title = "Exchange coupling and stability of PtMn-based spin valves",

abstract = "The exchange coupling and stability of spin valves with antiferromagnetic (AF) PtMn films were investigated through the correlation between the magnetic properties and their microstructures. The exchange coupling field (Hex) decreases during iterative MR measurements and this decrease associates closely with the changes in the rotational hysteresis loss (Wr), exchange anisotropy energy (Ke) and blocking temperature (Tb) distribution. Ordering of PtMn films that is featured by antiphase configuration is found to play a significant role in determining the exchange coupling properties and stability of these spin valves.",

keywords = "Antiferromagnetic Pt-Mn, Exchange coupling, Magnetoresistance and spin valves, Unidirectional anisotropy",

author = "Diao, {Z. T.} and M. Ueno and A. Kojo and H. Nishida and F. Hikami and T. Fukagawa and T. Sawasaki and K. Tabuchi and K. Kamei",

year = "2000",

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doi = "10.1109/20.908540",

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T1 - Exchange coupling and stability of PtMn-based spin valves

AU - Diao, Z. T.

AU - Ueno, M.

AU - Kojo, A.

AU - Nishida, H.

AU - Hikami, F.

AU - Fukagawa, T.

AU - Sawasaki, T.

AU - Tabuchi, K.

AU - Kamei, K.

PY - 2000/9

Y1 - 2000/9

N2 - The exchange coupling and stability of spin valves with antiferromagnetic (AF) PtMn films were investigated through the correlation between the magnetic properties and their microstructures. The exchange coupling field (Hex) decreases during iterative MR measurements and this decrease associates closely with the changes in the rotational hysteresis loss (Wr), exchange anisotropy energy (Ke) and blocking temperature (Tb) distribution. Ordering of PtMn films that is featured by antiphase configuration is found to play a significant role in determining the exchange coupling properties and stability of these spin valves.

AB - The exchange coupling and stability of spin valves with antiferromagnetic (AF) PtMn films were investigated through the correlation between the magnetic properties and their microstructures. The exchange coupling field (Hex) decreases during iterative MR measurements and this decrease associates closely with the changes in the rotational hysteresis loss (Wr), exchange anisotropy energy (Ke) and blocking temperature (Tb) distribution. Ordering of PtMn films that is featured by antiphase configuration is found to play a significant role in determining the exchange coupling properties and stability of these spin valves.

KW - Antiferromagnetic Pt-Mn

KW - Exchange coupling

KW - Magnetoresistance and spin valves

KW - Unidirectional anisotropy

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DO - 10.1109/20.908540

M3 - Article

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SN - 0018-9464

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EP - 2634

JO - IEEE Transactions on Magnetics

JF - IEEE Transactions on Magnetics

IS - 5 I

ER -

Exchange coupling and stability of PtMn-based spin valves

Abstract

Keywords

ASJC Scopus subject areas

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