Infrared phonon dynamics of a multiferroic BiFeO3 single crystal

被引：130

作者：

Lobo, R. P. S. M.

Moreira, R. L.

Lebeugle, D.

Colson, D.

机构：

[1] Univ Paris 06, Lab Photons & Mat, ESPCI, CNRS,UPR 5, F-75231 Paris 5, France

[2] Univ Fed Minas Gerais, Dept Fis, ICEx, BR-31270901 Belo Horizonte, MG, Brazil

[3] CEA Saclay, DSM DRECAM SPEC, Serv Phys Etat Condense, CNRS,URA 2464, F-91191 Gif Sur Yvette, France

来源：

PHYSICAL REVIEW B | 2007年 / 76卷 / 17期

关键词：

D O I：

10.1103/PhysRevB.76.172105

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We discuss the infrared reflectivity measurement on a BiFeO3 single crystal between 5 K and room temperature. The nine predicted ab-plane E phonon modes are fully and unambiguously determined. The frequencies of the four A(1) c-axis phonons are found. These results settle issues between theory and data on ceramics. Our findings show that the softening of the lowest frequency E mode is responsible for the temperature dependence of the dielectric constant, indicating that the ferroelectric transition in BiFeO3 is soft-mode driven.

引用

收藏

页数：4

相关论文

共 22 条

[1] Electric field effect on BiFeO3 single crystal investigated by Raman spectroscopy [J].

Cazayous, M. ;

Malka, D. ;

Lebeugle, D. ;

Colson, D. .

APPLIED PHYSICS LETTERS, 2007, 91 (07)

[2]

Curie P., 1894, J. Phys. Theor. Appl, V3, P393, DOI [DOI 10.1051/JPHYSTAP:018940030039300, 10.1051/jphystap:018940030039300]

[3]

Freeman A. J., 1975, MAGNETOELECTRIC INTE

[4] Raman scattering study of multiferroic BiFeO3 single crystal [J].

Fukumura, H. ;

Harima, H. ;

Kisoda, K. ;

Tamada, M. ;

Noguchi, Y. ;

Miyayama, M. .

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, 2007, 310 (02) :E367-E369

[5] TEMPERATURE-DEPENDENCE OF PLASMONS IN NB-DOPED SRTIO3 [J].

GERVAIS, F ;

SERVOIN, JL ;

BARATOFF, A ;

BEDNORZ, JG ;

BINNIG, G .

PHYSICAL REVIEW B, 1993, 47 (13) :8187-8194

[6] Phonon anomalies and the ferroelectric phase transition in multiferroic BiFeO3 [J].

Haumont, R ;

Kreisel, J ;

Bouvier, P ;

Hippert, F .

PHYSICAL REVIEW B, 2006, 73 (13)

[7] Raman and infrared spectra of multiferroic bismuth ferrite from first principles [J].

Hermet, P. ;

Goffinet, M. ;

Kreisel, J. ;

Ghosez, Ph. .

PHYSICAL REVIEW B, 2007, 75 (22)

[8] TECHNIQUE FOR MEASURING THE REFLECTANCE OF IRREGULAR, SUBMILLIMETER-SIZED SAMPLES [J].

HOMES, CC ;

REEDYK, M ;

CRADLES, DA ;

TIMUSK, T .

APPLIED OPTICS, 1993, 32 (16) :2976-2983

[9] Coupling between the ferroelectric and antiferromagnetic orders in YMnO3 [J].

Huang, ZJ ;

Cao, Y ;

Sun, YY ;

Xue, YY ;

Chu, CW .

PHYSICAL REVIEW B, 1997, 56 (05) :2623-2626

[10] LATTICE-DYNAMICS STUDY OF SOLID-SOLUTION (BI1-XLAX)FEO3 BY IR SPECTROSCOPY [J].

KACZMAREK, W ;

GRAJA, A .

SOLID STATE COMMUNICATIONS, 1975, 17 (07) :851-853