Ferroelectricity induced by acentric spin-density waves in YMn2O5

被引：202

作者：

Chapon, LC ^{[1
]}

Radaelli, PG

Blake, GR

Park, S

Cheong, SW

机构：

[1] Rutherford Appleton Lab, CCLRC, ISIS Facil, Didcot OX11 0QX, Oxon, England

[2] UCL, Dept Phys & Astron, London WC1E 6BT, England

[3] Argonne Natl Lab, Div Mat Sci, Argonne, IL 60439 USA

[4] Rutgers State Univ, Dept Phys & Astron, Piscataway, NJ 08854 USA

来源：

PHYSICAL REVIEW LETTERS | 2006年 / 96卷 / 09期

关键词：

D O I：

10.1103/PhysRevLett.96.097601

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The commensurate and incommensurate magnetic structures of the magnetoelectric system YMn2O5, as determined from neutron diffraction, were found to be spin-density waves lacking a global center of symmetry. We propose a model, based on a simple magnetoelastic coupling to the lattice, which enables us to predict the polarization based entirely on the observed magnetic structure. Our data accurately reproduce the temperature dependence of the spontaneous polarization, particularly its sign reversal at the commensurate-incommensurate transition.

引用

页数：4

共 12 条

[1] Spin structure and magnetic frustration in multiferroic RMn2O5 (R=Tb,Ho,Dy) -: art. no. 214402 [J].

Blake, GR ;

Chapon, LC ;

Radaelli, PG ;

Park, S ;

Hur, N ;

Cheong, SW ;

Rodríguez-Carvajal, J .

PHYSICAL REVIEW B, 2005, 71 (21)

[2] Structural anomalies and multiferroic behavior in magnetically frustrated TbMn2O5 -: art. no. 177402 [J].

Chapon, LC ;

Blake, GR ;

Gutmann, MJ ;

Park, S ;

Hur, N ;

Radaelli, PG ;

Cheong, SW .

PHYSICAL REVIEW LETTERS, 2004, 93 (17) :177402-1

[3] THE MAGNETIC-STRUCTURES OF THE RARE-EARTH MANGANATES ERMN2O5 AND TBMN2O5 [J].

GARDNER, PP ;

WILKINSON, C ;

FORSYTH, JB ;

WANKLYN, BM .

JOURNAL OF PHYSICS C-SOLID STATE PHYSICS, 1988, 21 (33) :5653-5661

[4] Electric polarization reversal and memory in a multiferroic material induced by magnetic fields [J].

Hur, N ;

Park, S ;

Sharma, PA ;

Ahn, JS ;

Guha, S ;

Cheong, SW .

NATURE, 2004, 429 (6990) :392-395

[5]

Kagomiya I., 2003, FERROELECTRICS, V286, P167

[6] Magnetic inversion symmetry breaking and ferroelectricity in TbMnO3 -: art. no. 087206 [J].

Kenzelmann, M ;

Harris, AB ;

Jonas, S ;

Broholm, C ;

Schefer, J ;

Kim, SB ;

Zhang, CL ;

Cheong, SW ;

Vajk, OP ;

Lynn, JW .

PHYSICAL REVIEW LETTERS, 2005, 95 (08)

[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] Magnetic phase diagram of the colossal magnetoelectric DyMn2O5 -: art. no. 060407 [J].

Ratcliff, W ;

Kiryukhin, V ;

Kenzelmann, M ;

Lee, SH ;

Erwin, R ;

Schefer, J ;

Hur, N ;

Park, S ;

Cheong, SW .

PHYSICAL REVIEW B, 2005, 72 (06)

[10] RECENT ADVANCES IN MAGNETIC-STRUCTURE DETERMINATION BY NEUTRON POWDER DIFFRACTION [J].

RODRIGUEZCARVAJAL, J .

PHYSICA B, 1993, 192 (1-2) :55-69

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