Evidence of non-Dzyaloshinskii-Moriya ferromagnetism in epitaxial BiFeO(3) films

VG Prokhorov; GG Kaminsky; JM Kim; TW Eom; JS Park; YP Lee; V Svetchnikov; GG Levtchenko; YM Nikolaenko; VA Khokhlov

doi:10.1063/1.3555838

Evidence of non-Dzyaloshinskii-Moriya ferromagnetism in epitaxial BiFeO(3) films

VG Prokhorov, GG Kaminsky, JM Kim, TW Eom, JS Park, YP Lee, V Svetchnikov, GG Levtchenko, YM Nikolaenko, VA Khokhlov

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

11 Citations (Scopus)

Abstract

-ray diffraction analysis and high-resolution electron microscopy of BiFeO(3) films prepared by dc magnetron sputtering on single-crystal LaAlO(3) (001) substrates reveal that the films have a highly c-oriented orthorhombic crystalline structure. The magnetic properties of the BiFeO3 films are typical of ensembles of interacting superparamagnetic clusters, rather than Dzyaloshinskii-Moriya weak ferromagnets. The appearance of extrinsic nanoscale superparamagnetic clusters is explained by an oxygen deficiency in certain regions of the film, where ferromagnetic ordering can be realized through a double-exchange Zener mechanism.

Original language	English
Pages (from-to)	129-133
Number of pages	5
Journal	Low Temperature Physics
Volume	37
Issue number	2
DOIs	https://doi.org/10.1063/1.3555838
Publication status	Published - 2011

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CWTS JFIS < 0.75

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10.1063/1.3555838

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title = "Evidence of non-Dzyaloshinskii-Moriya ferromagnetism in epitaxial BiFeO(3) films",

abstract = "-ray diffraction analysis and high-resolution electron microscopy of BiFeO(3) films prepared by dc magnetron sputtering on single-crystal LaAlO(3) (001) substrates reveal that the films have a highly c-oriented orthorhombic crystalline structure. The magnetic properties of the BiFeO3 films are typical of ensembles of interacting superparamagnetic clusters, rather than Dzyaloshinskii-Moriya weak ferromagnets. The appearance of extrinsic nanoscale superparamagnetic clusters is explained by an oxygen deficiency in certain regions of the film, where ferromagnetic ordering can be realized through a double-exchange Zener mechanism.",

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author = "VG Prokhorov and GG Kaminsky and JM Kim and TW Eom and JS Park and YP Lee and V Svetchnikov and GG Levtchenko and YM Nikolaenko and VA Khokhlov",

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doi = "10.1063/1.3555838",

language = "English",

volume = "37",

pages = "129--133",

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T1 - Evidence of non-Dzyaloshinskii-Moriya ferromagnetism in epitaxial BiFeO(3) films

AU - Prokhorov, VG

AU - Kaminsky, GG

AU - Kim, JM

AU - Eom, TW

AU - Park, JS

AU - Lee, YP

AU - Svetchnikov, V

AU - Levtchenko, GG

AU - Nikolaenko, YM

AU - Khokhlov, VA

PY - 2011

Y1 - 2011

N2 - -ray diffraction analysis and high-resolution electron microscopy of BiFeO(3) films prepared by dc magnetron sputtering on single-crystal LaAlO(3) (001) substrates reveal that the films have a highly c-oriented orthorhombic crystalline structure. The magnetic properties of the BiFeO3 films are typical of ensembles of interacting superparamagnetic clusters, rather than Dzyaloshinskii-Moriya weak ferromagnets. The appearance of extrinsic nanoscale superparamagnetic clusters is explained by an oxygen deficiency in certain regions of the film, where ferromagnetic ordering can be realized through a double-exchange Zener mechanism.

AB - -ray diffraction analysis and high-resolution electron microscopy of BiFeO(3) films prepared by dc magnetron sputtering on single-crystal LaAlO(3) (001) substrates reveal that the films have a highly c-oriented orthorhombic crystalline structure. The magnetic properties of the BiFeO3 films are typical of ensembles of interacting superparamagnetic clusters, rather than Dzyaloshinskii-Moriya weak ferromagnets. The appearance of extrinsic nanoscale superparamagnetic clusters is explained by an oxygen deficiency in certain regions of the film, where ferromagnetic ordering can be realized through a double-exchange Zener mechanism.

KW - CWTS JFIS < 0.75

U2 - 10.1063/1.3555838

DO - 10.1063/1.3555838

M3 - Article

SN - 1063-777X

VL - 37

SP - 129

EP - 133

JO - Low Temperature Physics

JF - Low Temperature Physics

IS - 2

ER -

Evidence of non-Dzyaloshinskii-Moriya ferromagnetism in epitaxial BiFeO(3) films

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