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 - 2012 Jun 11

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (2011-0016497 and 2010-359-D00033) and by the International Research & Development Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST) of Korea (Grant No. 2011-00127). H.C.W. and I.V.S. acknowledge the financial support from SFI under Contract No. 06/IN.1/I91. M.A. acknowledges the financial support from NPST (No.11-NAN1466-02).

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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@article{b62a436f434b46afa8d5e2bab9a9729c,

title = "Domain wall configuration and magneto-transport properties in dual spin-valve with nanoconstriction",

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.",

author = "\{Sun Chun\}, Byong and Wu, \{Han Chun\} and \{Jung Noh\}, Su and \{Chang Chu\}, In and Santiago Serrano-Guisan and Chanyong Hwang and Shvets, \{Igor V.\} and Liao, \{Zhi Min\} and Mohamed Abid and \{Keun Kim\}, Young",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (2011-0016497 and 2010-359-D00033) and by the International Research \& Development Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST) of Korea (Grant No. 2011-00127). H.C.W. and I.V.S. acknowledge the financial support from SFI under Contract No. 06/IN.1/I91. M.A. acknowledges the financial support from NPST (No.11-NAN1466-02).",

year = "2012",

month = jun,

day = "11",

doi = "10.1063/1.4729126",

language = "English",

volume = "100",

journal = "Applied Physics Letters",

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T1 - Domain wall configuration and magneto-transport properties in dual spin-valve with nanoconstriction

AU - Sun Chun, Byong

AU - Wu, Han Chun

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

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (2011-0016497 and 2010-359-D00033) and by the International Research & Development Program of the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Science and Technology (MEST) of Korea (Grant No. 2011-00127). H.C.W. and I.V.S. acknowledge the financial support from SFI under Contract No. 06/IN.1/I91. M.A. acknowledges the financial support from NPST (No.11-NAN1466-02).

PY - 2012/6/11

Y1 - 2012/6/11

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.

UR - https://www.scopus.com/pages/publications/84863316659

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DO - 10.1063/1.4729126

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SN - 0003-6951

VL - 100

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 24

M1 - 242409

ER -

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

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