Magnetic coupling and magnetoresistance in Fe/Si1-xAg x multilayers

Hai Wang; Yunjun Tang; Xiang Li; Xi Chen; Yinjun Wang; Tao Zhu; Hongwu Zhao; Wenshan Zhan

doi:10.1063/1.1445466

Magnetic coupling and magnetoresistance in Fe/Si_1-xAg _x multilayers

Hai Wang^*, Yunjun Tang, Xiang Li, Xi Chen, Yinjun Wang, Tao Zhu, Hongwu Zhao, Wenshan Zhan

^*Corresponding author for this work

CAS - Institute of Physics

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

Abstract

In this letter, we present a study on the magnetic coupling and magnetoresistance (MR) properties in Fe/Si_1-xAg_x multilayers (MLs) with a granular Si_1-xAg_x spacer layer. We found that with increasing silver content (x) in a silicon matrix, the magnetic state of MLs varies from a nonmagnetic-coupling state to a weak-antiferromagnetic state around the percolation point of the ∼24-Å-thick granular spacer Si_1-xAg_x. The MR measurements also reveal an abrupt increase of MR near the same percolation point. These variations are ascribed to the formation of the percolation path in the granular spacer.

Original language	English
Pages (from-to)	631-633
Number of pages	3
Journal	Applied Physics Letters
Volume	80
Issue number	4
DOIs	https://doi.org/10.1063/1.1445466
Publication status	Published - 28 Jan 2002
Externally published	Yes

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title = "Magnetic coupling and magnetoresistance in Fe/Si1-xAg x multilayers",

abstract = "In this letter, we present a study on the magnetic coupling and magnetoresistance (MR) properties in Fe/Si1-xAgx multilayers (MLs) with a granular Si1-xAgx spacer layer. We found that with increasing silver content (x) in a silicon matrix, the magnetic state of MLs varies from a nonmagnetic-coupling state to a weak-antiferromagnetic state around the percolation point of the ∼24-{\AA}-thick granular spacer Si1-xAgx. The MR measurements also reveal an abrupt increase of MR near the same percolation point. These variations are ascribed to the formation of the percolation path in the granular spacer.",

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AU - Wang, Hai

AU - Tang, Yunjun

AU - Li, Xiang

AU - Chen, Xi

AU - Wang, Yinjun

AU - Zhu, Tao

AU - Zhao, Hongwu

AU - Zhan, Wenshan

PY - 2002/1/28

Y1 - 2002/1/28

N2 - In this letter, we present a study on the magnetic coupling and magnetoresistance (MR) properties in Fe/Si1-xAgx multilayers (MLs) with a granular Si1-xAgx spacer layer. We found that with increasing silver content (x) in a silicon matrix, the magnetic state of MLs varies from a nonmagnetic-coupling state to a weak-antiferromagnetic state around the percolation point of the ∼24-Å-thick granular spacer Si1-xAgx. The MR measurements also reveal an abrupt increase of MR near the same percolation point. These variations are ascribed to the formation of the percolation path in the granular spacer.

AB - In this letter, we present a study on the magnetic coupling and magnetoresistance (MR) properties in Fe/Si1-xAgx multilayers (MLs) with a granular Si1-xAgx spacer layer. We found that with increasing silver content (x) in a silicon matrix, the magnetic state of MLs varies from a nonmagnetic-coupling state to a weak-antiferromagnetic state around the percolation point of the ∼24-Å-thick granular spacer Si1-xAgx. The MR measurements also reveal an abrupt increase of MR near the same percolation point. These variations are ascribed to the formation of the percolation path in the granular spacer.

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JF - Applied Physics Letters

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Magnetic coupling and magnetoresistance in Fe/Si_1-xAg _x multilayers

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