Domain wall configuration and magneto-transport properties in dual spin-valve with nanoconstriction

Byong Sun Chun; Han Chun Wu; Su Jung Noh; In Chang Chu; Santiago Serrano-Guisan; Chanyong Hwang; Igor V. Shvets; Zhi Min Liao; Mohamed Abid; Young Keun Kim

doi:10.1063/1.4729126

Domain wall configuration and magneto-transport properties in dual spin-valve with nanoconstriction

Byong Sun Chun, Han Chun Wu, Su Jung Noh, In Chang Chu, Santiago Serrano-Guisan, Chanyong Hwang, Igor V. Shvets, Zhi Min Liao, Mohamed Abid^*, Young Keun Kim

^*Corresponding author for this work

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

2 Citations (Scopus)

Abstract

We investigated the effect of external field on magneto-transport properties of synthetic antiferromagnet dual spin-valve with nanoconstriction with focus on domain wall (DW) configuration and magnetization reversal process. As magnetic field rotated from in-plane to out-of-plane along hard axis configuration, the magnetization reversal mode changed from a vortex to a transverse type, and a multistep switching process appeared due to the development of a transverse magnetization reversal mode with DW pushing towards the higher anisotropy region. The difference in the shape of nanoconstriction made an asymmetric energy barrier to the DW propagation which resulted in an asymmetry depinning field.

Original language	English
Article number	242409
Journal	Applied Physics Letters
Volume	100
Issue number	24
DOIs	https://doi.org/10.1063/1.4729126
Publication status	Published - 11 Jun 2012
Externally published	Yes

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Sun Chun, B., Wu, H. C., Jung Noh, S., Chang Chu, I., Serrano-Guisan, S., Hwang, C., Shvets, I. V., Liao, Z. M., Abid, M., & Keun Kim, Y. (2012). Domain wall configuration and magneto-transport properties in dual spin-valve with nanoconstriction. Applied Physics Letters, 100(24), Article 242409. https://doi.org/10.1063/1.4729126

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abstract = "We investigated the effect of external field on magneto-transport properties of synthetic antiferromagnet dual spin-valve with nanoconstriction with focus on domain wall (DW) configuration and magnetization reversal process. As magnetic field rotated from in-plane to out-of-plane along hard axis configuration, the magnetization reversal mode changed from a vortex to a transverse type, and a multistep switching process appeared due to the development of a transverse magnetization reversal mode with DW pushing towards the higher anisotropy region. The difference in the shape of nanoconstriction made an asymmetric energy barrier to the DW propagation which resulted in an asymmetry depinning field.",

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AU - Sun Chun, Byong

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AU - Jung Noh, Su

AU - Chang Chu, In

AU - Serrano-Guisan, Santiago

AU - Hwang, Chanyong

AU - Shvets, Igor V.

AU - Liao, Zhi Min

AU - Abid, Mohamed

AU - Keun Kim, Young

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N2 - We investigated the effect of external field on magneto-transport properties of synthetic antiferromagnet dual spin-valve with nanoconstriction with focus on domain wall (DW) configuration and magnetization reversal process. As magnetic field rotated from in-plane to out-of-plane along hard axis configuration, the magnetization reversal mode changed from a vortex to a transverse type, and a multistep switching process appeared due to the development of a transverse magnetization reversal mode with DW pushing towards the higher anisotropy region. The difference in the shape of nanoconstriction made an asymmetric energy barrier to the DW propagation which resulted in an asymmetry depinning field.

AB - We investigated the effect of external field on magneto-transport properties of synthetic antiferromagnet dual spin-valve with nanoconstriction with focus on domain wall (DW) configuration and magnetization reversal process. As magnetic field rotated from in-plane to out-of-plane along hard axis configuration, the magnetization reversal mode changed from a vortex to a transverse type, and a multistep switching process appeared due to the development of a transverse magnetization reversal mode with DW pushing towards the higher anisotropy region. The difference in the shape of nanoconstriction made an asymmetric energy barrier to the DW propagation which resulted in an asymmetry depinning field.

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Domain wall configuration and magneto-transport properties in dual spin-valve with nanoconstriction

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