Formation of magnetite in bismuth ferrrite under voltage stressing

被引：29

作者：

Lou, X. J. ^{[1
]}

Yang, C. X.

Tang, T. A.

Lin, Y. Y.

Zhang, M.

Scott, J. F.

机构：

[1] Univ Cambridge, Dept Earth Sci, Ctr Ferro, Cambridge CB2 3EQ, England

[2] Fudan Univ, Dept Microelect, Asic&Syst State Key Lab, Shanghai, Peoples R China

来源：

APPLIED PHYSICS LETTERS | 2007年 / 90卷 / 26期

关键词：

D O I：

10.1063/1.2752724

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

Micro-Raman studies show that under similar to 700 kV/cm of dc voltage stressing for a few seconds, magnetite Fe3O4 forms in thin-film bismuth ferrite BiFeO3, probably due to phase separation. No evidence is found spectroscopically of hemite alpha-Fe2O3, maghemite gamma-Fe2O3, or Bi2O3. This may relate to the controversy regarding the magnitude of magnetization in BiFeO3. (c) 2007 American Institute of Physics.

引用

页数：3

共 22 条

[1] Investigation on the origin of the magnetic moment of BiFeO3 thin films by advanced X-ray characterizations [J].

Bea, Helene ;

Bibes, Manuel ;

Fusil, Stephane ;

Bouzehouane, Karim ;

Jacquet, Eric ;

Rode, Karsten ;

Bencok, Peter ;

Barthelemy, Agnes .

PHYSICAL REVIEW B, 2006, 74 (02)

[2] VIBRATIONAL-SPECTRA OF BISMUTH OXIDE AND SILLENITE-STRUCTURE BISMUTH OXIDE DERIVATIVES [J].

BETSCH, RJ ;

WHITE, WB .

SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1978, 34 (05) :505-514

[3] Raman spectra and lattice dynamics of single-crystal alpha-Bi2O3 [J].

Denisov, VN ;

Ivlev, AN ;

Lipin, AS ;

Mavrin, BN ;

Orlov, VG .

JOURNAL OF PHYSICS-CONDENSED MATTER, 1997, 9 (23) :4967-4978

[4] Multiferroic and magnetoelectric materials [J].

Eerenstein, W. ;

Mathur, N. D. ;

Scott, J. F. .

NATURE, 2006, 442 (7104) :759-765

[5] Comment on "Epitaxial BiFeO3 multiferroic thin film heterostructures" [J].

Eerenstein, W ;

Morrison, FD ;

Dho, J ;

Blamire, MG ;

Scott, JF ;

Mathur, ND .

SCIENCE, 2005, 307 (5713) :1203-1203

[6] MAGNETIC STRUCTURE AND VACANCY DISTRIBUTION IN GAMMA-FE2O3 BY NEUTRON DIFFRACTION [J].

FERGUSON, GA ;

HASS, M .

PHYSICAL REVIEW, 1958, 112 (04) :1130-1131

[7] Revival of the magnetoelectric effect [J].

Fiebig, M .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 2005, 38 (08) :R123-R152

[8] THE MOLECULAR-STRUCTURE OF BISMUTH OXIDE BY RAMAN-SPECTROSCOPY [J].

HARDCASTLE, FD ;

WACHS, IE .

JOURNAL OF SOLID STATE CHEMISTRY, 1992, 97 (02) :319-331

[9] EFFECTS OF PRESSURE AND ISOTOPIC-SUBSTITUTION ON THE RAMAN-SPECTRUM OF ALPHA-FE2O3 - IDENTIFICATION OF 2-MAGNON SCATTERING [J].

MASSEY, MJ ;

BAIER, U ;

MERLIN, R ;

WEBER, WH .

PHYSICAL REVIEW B, 1990, 41 (11) :7822-7827

[10] Synthesis and structural characterization of BiFeO3-BaTiO3 materials [J].

Melgarejo, RE ;

Tomar, MS ;

Guzman, R ;

Singh, SP .

FERROELECTRICS, 2005, 324 :101-103

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