Effect of ferromagnetic nanoparticles on the transport properties of a GaMnAs microbridge

M. V. Sapozhnikov; A. A. Fraerman; S. N. Vdovichev; B. A. Gribkov; S. A. Gusev; A. Yu Klimov; V. V. Rogov; Joonyeon Chang; Hyungjun Kim; Hyun Cheol Koo; Suk Hee Han; S. H. Chun

doi:10.1063/1.2768304

Effect of ferromagnetic nanoparticles on the transport properties of a GaMnAs microbridge

M. V. Sapozhnikov, A. A. Fraerman, S. N. Vdovichev, B. A. Gribkov, S. A. Gusev, A. Yu Klimov, V. V. Rogov, Joonyeon Chang, Hyungjun Kim, Hyun Cheol Koo, Suk Hee Han, S. H. Chun

KU-KIST Graduate School of Converging Science and Technology

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

4 Citations (Scopus)

Abstract

A chain of Co nanoparticles was formed along a GaMnAs microbridge by electron beam lithography. The magnetic state of the particles was manipulated by a magnetic force microscope probe. It was found that resistance of the microbridge depended on the state of the particles and was different for the particles in the single-domain and vortex states. The resistance exhibited steplike behavior in an external magnetic field. This behavior was the result of the effect of the inhomogeneous stray fields of the particles on the microbridge resistance. The observed phenomenon can be used as an alternative way to control GaMnAs transport properties.

Original language	English
Article number	062513
Journal	Applied Physics Letters
Volume	91
Issue number	6
DOIs	https://doi.org/10.1063/1.2768304
Publication status	Published - 2007

ASJC Scopus subject areas

Physics and Astronomy (miscellaneous)

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10.1063/1.2768304

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title = "Effect of ferromagnetic nanoparticles on the transport properties of a GaMnAs microbridge",

abstract = "A chain of Co nanoparticles was formed along a GaMnAs microbridge by electron beam lithography. The magnetic state of the particles was manipulated by a magnetic force microscope probe. It was found that resistance of the microbridge depended on the state of the particles and was different for the particles in the single-domain and vortex states. The resistance exhibited steplike behavior in an external magnetic field. This behavior was the result of the effect of the inhomogeneous stray fields of the particles on the microbridge resistance. The observed phenomenon can be used as an alternative way to control GaMnAs transport properties.",

author = "Sapozhnikov, {M. V.} and Fraerman, {A. A.} and Vdovichev, {S. N.} and Gribkov, {B. A.} and Gusev, {S. A.} and Klimov, {A. Yu} and Rogov, {V. V.} and Joonyeon Chang and Hyungjun Kim and Koo, {Hyun Cheol} and Han, {Suk Hee} and Chun, {S. H.}",

note = "Funding Information: This study was supported by the KIST Institutional Program and RFBR (05-02-17362).",

year = "2007",

doi = "10.1063/1.2768304",

language = "English",

volume = "91",

journal = "Applied Physics Letters",

issn = "0003-6951",

publisher = "American Institute of Physics Publising LLC",

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TY - JOUR

T1 - Effect of ferromagnetic nanoparticles on the transport properties of a GaMnAs microbridge

AU - Sapozhnikov, M. V.

AU - Fraerman, A. A.

AU - Vdovichev, S. N.

AU - Gribkov, B. A.

AU - Gusev, S. A.

AU - Klimov, A. Yu

AU - Rogov, V. V.

AU - Chang, Joonyeon

AU - Kim, Hyungjun

AU - Koo, Hyun Cheol

AU - Han, Suk Hee

AU - Chun, S. H.

N1 - Funding Information: This study was supported by the KIST Institutional Program and RFBR (05-02-17362).

PY - 2007

Y1 - 2007

N2 - A chain of Co nanoparticles was formed along a GaMnAs microbridge by electron beam lithography. The magnetic state of the particles was manipulated by a magnetic force microscope probe. It was found that resistance of the microbridge depended on the state of the particles and was different for the particles in the single-domain and vortex states. The resistance exhibited steplike behavior in an external magnetic field. This behavior was the result of the effect of the inhomogeneous stray fields of the particles on the microbridge resistance. The observed phenomenon can be used as an alternative way to control GaMnAs transport properties.

AB - A chain of Co nanoparticles was formed along a GaMnAs microbridge by electron beam lithography. The magnetic state of the particles was manipulated by a magnetic force microscope probe. It was found that resistance of the microbridge depended on the state of the particles and was different for the particles in the single-domain and vortex states. The resistance exhibited steplike behavior in an external magnetic field. This behavior was the result of the effect of the inhomogeneous stray fields of the particles on the microbridge resistance. The observed phenomenon can be used as an alternative way to control GaMnAs transport properties.

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U2 - 10.1063/1.2768304

DO - 10.1063/1.2768304

M3 - Article

AN - SCOPUS:34547842584

SN - 0003-6951

VL - 91

JO - Applied Physics Letters

JF - Applied Physics Letters

IS - 6

M1 - 062513

ER -

Effect of ferromagnetic nanoparticles on the transport properties of a GaMnAs microbridge

Abstract

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