Impurity-doping-induced ferroelectricity in the frustrated antiferromagnet CuFeO2

被引：158

作者：

Seki, S. ^{[1
]}

Yamasaki, Y.

Shiomi, Y.

Iguchi, S.

Onose, Y.

Tokura, Y.

机构：

[1] Univ Tokyo, Dept Appl Phys, Tokyo 1138656, Japan

[2] JST, ERATO, Multiferroics Project, Tokyo 1138656, Japan

来源：

PHYSICAL REVIEW B | 2007年 / 75卷 / 10期

关键词：

D O I：

10.1103/PhysRevB.75.100403

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Dielectric responses have been investigated on the triangular-lattice antiferromagnet CuFeO2 and its site-diluted analogs CuFe1-xAlxO2 (x=0.01 and 0.02) with and without the application of the magnetic field. We have found a ferroelectric behavior at zero magnetic field for x=0.02. At any doping level, the onset field of the ferroelectricity always coincides with that of the noncollinear magnetic structure while the transition field dramatically decreases to zero field with Al doping. The results imply the further possibility of producing the ferroelectricity by modifying frustrated spin structure in terms of site doping and external magnetic field.

引用

收藏

页数：4

相关论文

共 22 条

[1] Colossal effects in transition metal oxides caused by intrinsic inhomogeneities [J].

Burgy, J ;

Mayr, M ;

Martin-Mayor, V ;

Moreo, A ;

Dagotto, E .

PHYSICAL REVIEW LETTERS, 2001, 87 (27) :277202-277202

[2] Multiferroic and magnetoelectric materials [J].

Eerenstein, W. ;

Mathur, N. D. ;

Scott, J. F. .

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

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

Fiebig, M .

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

[4] Spin current and magnetoelectric effect in noncollinear magnets [J].

Katsura, H ;

Nagaosa, N ;

Balatsky, AV .

PHYSICAL REVIEW LETTERS, 2005, 95 (05)

[5] Inversion-symmetry breaking in the noncollinear magnetic phase of the triangular-lattice antiferromagnet CuFeO2 [J].

Kimura, T. ;

Lashley, J. C. ;

Ramirez, A. P. .

PHYSICAL REVIEW B, 2006, 73 (22)

[6] Electric polarization rotation in a hexaferrite with long-wavelength magnetic structures [J].

Kimura, T ;

Lawes, G ;

Ramirez, AP .

PHYSICAL REVIEW LETTERS, 2005, 94 (13)

[7] Magnetic control of ferroelectric polarization [J].

Kimura, T ;

Goto, T ;

Shintani, H ;

Ishizaka, K ;

Arima, T ;

Tokura, Y .

NATURE, 2003, 426 (6962) :55-58

[8] Magnetically driven ferroelectric order in Ni3V2O8 -: art. no. 087205 [J].

Lawes, G ;

Harris, AB ;

Kimura, T ;

Rogado, N ;

Cava, RJ ;

Aharony, A ;

Entin-Wohlman, O ;

Yildirim, T ;

Kenzelmann, M ;

Broholm, C ;

Ramirez, AP .

PHYSICAL REVIEW LETTERS, 2005, 95 (08)

[9] Field-induced magnetic phase transitions in a triangular lattice antiferromagnet CuFeO2 up to 14.5T [J].

Mitsuda, S ;

Mase, M ;

Prokes, K ;

Kitazawa, H ;

Katori, HA .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 2000, 69 (11) :3513-3516

[10] Partially disordered phase in frustrated triangular lattice antiferromagnet CuFeO2 [J].

Mitsuda, S ;

Kasahara, N ;

Uno, T ;

Mase, M .

JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN, 1998, 67 (12) :4026-4029