High-Field Study of Strong Magnetoelectric Coupling in Single-Domain Crystals of BiFeO3

被引：98

作者：

Tokunaga, Masashi ^{[1
,2
]}

Azuma, Masaki ^{[3
]}

Shimakawa, Yuichi ^{[3
]}

机构：

[1] Univ Tokyo, Inst Solid State Phys, Chiba 2778581, Japan

[2] JST, TRIP, Chiyoda Ku, Tokyo 1020075, Japan

[3] Kyoto Univ, Inst Chem Res, Kyoto 6110011, Japan

来源：

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 2010年 / 79卷 / 06期

关键词：

multiferroics; phase transition; high magnetic field; magnetoelectric effect; BiFeO3; MODULATED MAGNETIC-STRUCTURE; BISMUTH FERRITE;

D O I：

10.1143/JPSJ.79.064713

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Magnetic and dielectric properties of single-domain crystals of BiFeO3 were studied in pulsed magnetic fields up to 55 T. At low temperatures, metamagnetic transitions accompanied with sharp changes in electric polarization (P) were observed at around 18 T. The angular dependence of the transition field coincides with that of the transition from the cycloidal state to the canted antiferromagnetic spin state studied in the framework of the Landau-Ginzburg theory incorporated with the Lifshitz-like invariant. The parasitic P component caused by the cycloidal spin structure amounts to 210 +/- 30 mu C/m(2) in terms of the projected component on the pseudocubic principal axis, which can be controlled by applying magnetic fields at least up to 500 K. This result indicates that the microscopic magnetoelectric coupling in BiFeO3 is not weak: In fact, it is rather strong as compared to that in the canonical multiferroic material TbMnO3.

引用

页数：5

共 34 条

[31] Magnetization of Polycrystalline BiFeO3 in High Magnetic Fields [J].

Wardecki, Dariusz ;

Przenioslo, Radoslaw ;

Sosnowska, Izabela ;

Skourski, Yurii ;

Loewenhaupt, Michael .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2008, 77 (10)

[32] Magnetic reversal of the ferroelectric polarization in a multiferroic spinel oxide [J].

Yamasaki, Y. ;

Miyasaka, S. ;

Kaneko, Y. ;

He, J. -P. ;

Arima, T. ;

Tokura, Y. .

PHYSICAL REVIEW LETTERS, 2006, 96 (20)

[33] Cycloidal spin order in the a-axis polarized ferroelectric phase of orthorhombic perovskite manganite [J].

Yamasaki, Y. ;

Sagayama, H. ;

Abe, N. ;

Arima, T. ;

Sasai, K. ;

Matsuura, M. ;

Hirota, K. ;

Okuyama, D. ;

Noda, Y. ;

Tokura, Y. .

PHYSICAL REVIEW LETTERS, 2008, 101 (09)

[34] 57Fe NMR study of spin-modulated magnetic structure in BiFeO3 [J].

Zalessky, AV ;

Frolov, AA ;

Khimich, TA ;

Bush, AA ;

Pokatilov, VS ;

Zvezdin, AK .

EUROPHYSICS LETTERS, 2000, 50 (04) :547-551

← 1 2 3 4 →