The magnetic Y-branch nanojunction: Domain-wall structure and magneto-resistance

Z. Chen; T. Y. Lin; X. Wei; M. Matsunaga; T. Doi; Y. Ochiai; N. Aoki; J. P. Bird

doi:10.1063/1.4750240

The magnetic Y-branch nanojunction: Domain-wall structure and magneto-resistance

Z. Chen
, T. Y. Lin
, X. Wei
, M. Matsunaga
, T. Doi
, Y. Ochiai
, N. Aoki
, J. P. Bird

Department of Electrical Engineering

SUNY Buffalo
Chiba University

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

8 Scopus citations

Abstract

We analyze the domain structure of magnetic Y-branch nanojunctions that are formed by the intersection of a pair of orthogonal nanoscale notches. Dependent upon the magnetization history, we show the possibility of localizing various domain-wall (DW) structures at different parts of these junctions, leading to measurable magneto-resistance changes. These changes in turn allow the investigation of DW resistance, separate from the complicating effects of anisotropic magneto-resistance. The capacity to electrically detect the presence of DW structures in different regions of the junction may eventually make these structures of interest for future investigations of DW-enabled logic.

Original language	English
Article number	102403
Journal	Applied Physics Letters
Volume	101
Issue number	10
DOIs	https://doi.org/10.1063/1.4750240
State	Published - Sep 3 2012

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10.1063/1.4750240

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abstract = "We analyze the domain structure of magnetic Y-branch nanojunctions that are formed by the intersection of a pair of orthogonal nanoscale notches. Dependent upon the magnetization history, we show the possibility of localizing various domain-wall (DW) structures at different parts of these junctions, leading to measurable magneto-resistance changes. These changes in turn allow the investigation of DW resistance, separate from the complicating effects of anisotropic magneto-resistance. The capacity to electrically detect the presence of DW structures in different regions of the junction may eventually make these structures of interest for future investigations of DW-enabled logic.",

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AU - Matsunaga, M.

AU - Doi, T.

AU - Ochiai, Y.

AU - Aoki, N.

AU - Bird, J. P.

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AB - We analyze the domain structure of magnetic Y-branch nanojunctions that are formed by the intersection of a pair of orthogonal nanoscale notches. Dependent upon the magnetization history, we show the possibility of localizing various domain-wall (DW) structures at different parts of these junctions, leading to measurable magneto-resistance changes. These changes in turn allow the investigation of DW resistance, separate from the complicating effects of anisotropic magneto-resistance. The capacity to electrically detect the presence of DW structures in different regions of the junction may eventually make these structures of interest for future investigations of DW-enabled logic.

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The magnetic Y-branch nanojunction: Domain-wall structure and magneto-resistance

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