Thermally or magnetically induced polarization reversal in the multiferroic CoCr2O4

Y. J. Choi; J. Okamoto; D. J. Huang; K. S. Chao; H. J. Lin; C. T. Chen; M. Van Veenendaal; T. A. Kaplan; S. W. Cheong

doi:10.1103/PhysRevLett.102.067601

Thermally or magnetically induced polarization reversal in the multiferroic CoCr2O4

Y. J. Choi, J. Okamoto, D. J. Huang, K. S. Chao, H. J. Lin, C. T. Chen, M. Van Veenendaal, T. A. Kaplan, S. W. Cheong

New High Energy Theory Center

Research output: Contribution to journal › Article › peer-review

151 Scopus citations

Abstract

We report the unexpected evolution, with thermal and magnetic-field (H) variations, of the interrelation between the polarization P, magnetization M, and spiral wave vector Q in CoCr2O4, which has a ferrimagnetic conical-spiral magnetic order. For example, P suddenly jumps and changes its sign at the magnetic lock-in transition (TL) with thermal variation, or with isothermal variation of H (without changing its direction) at TL, which surprisingly occurs without change in spiral handedness (i.e., the sign of Q). The presence of multiple spiral sublattices may be behind this unusual behavior.

Original language	English (US)
Article number	067601
Journal	Physical review letters
Volume	102
Issue number	6
DOIs	https://doi.org/10.1103/PhysRevLett.102.067601
State	Published - Feb 9 2009

All Science Journal Classification (ASJC) codes

Physics and Astronomy(all)

Access to Document

10.1103/PhysRevLett.102.067601

Fingerprint Dive into the research topics of 'Thermally or magnetically induced polarization reversal in the multiferroic CoCr2O4'. Together they form a unique fingerprint.

Cite this

@article{cda78de960aa47a982f3516160daa745,

title = "Thermally or magnetically induced polarization reversal in the multiferroic CoCr2O4",

abstract = "We report the unexpected evolution, with thermal and magnetic-field (H) variations, of the interrelation between the polarization P, magnetization M, and spiral wave vector Q in CoCr2O4, which has a ferrimagnetic conical-spiral magnetic order. For example, P suddenly jumps and changes its sign at the magnetic lock-in transition (TL) with thermal variation, or with isothermal variation of H (without changing its direction) at TL, which surprisingly occurs without change in spiral handedness (i.e., the sign of Q). The presence of multiple spiral sublattices may be behind this unusual behavior.",

author = "Choi, {Y. J.} and J. Okamoto and Huang, {D. J.} and Chao, {K. S.} and Lin, {H. J.} and Chen, {C. T.} and {Van Veenendaal}, M. and Kaplan, {T. A.} and Cheong, {S. W.}",

year = "2009",

month = feb,

day = "9",

doi = "10.1103/PhysRevLett.102.067601",

language = "English (US)",

volume = "102",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "6",

}

TY - JOUR

T1 - Thermally or magnetically induced polarization reversal in the multiferroic CoCr2O4

AU - Choi, Y. J.

AU - Okamoto, J.

AU - Huang, D. J.

AU - Chao, K. S.

AU - Lin, H. J.

AU - Chen, C. T.

AU - Van Veenendaal, M.

AU - Kaplan, T. A.

AU - Cheong, S. W.

PY - 2009/2/9

Y1 - 2009/2/9

N2 - We report the unexpected evolution, with thermal and magnetic-field (H) variations, of the interrelation between the polarization P, magnetization M, and spiral wave vector Q in CoCr2O4, which has a ferrimagnetic conical-spiral magnetic order. For example, P suddenly jumps and changes its sign at the magnetic lock-in transition (TL) with thermal variation, or with isothermal variation of H (without changing its direction) at TL, which surprisingly occurs without change in spiral handedness (i.e., the sign of Q). The presence of multiple spiral sublattices may be behind this unusual behavior.

AB - We report the unexpected evolution, with thermal and magnetic-field (H) variations, of the interrelation between the polarization P, magnetization M, and spiral wave vector Q in CoCr2O4, which has a ferrimagnetic conical-spiral magnetic order. For example, P suddenly jumps and changes its sign at the magnetic lock-in transition (TL) with thermal variation, or with isothermal variation of H (without changing its direction) at TL, which surprisingly occurs without change in spiral handedness (i.e., the sign of Q). The presence of multiple spiral sublattices may be behind this unusual behavior.

UR - http://www.scopus.com/inward/record.url?scp=62449129862&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=62449129862&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.102.067601

DO - 10.1103/PhysRevLett.102.067601

M3 - Article

AN - SCOPUS:62449129862

VL - 102

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 6

M1 - 067601

ER -

Thermally or magnetically induced polarization reversal in the multiferroic CoCr2O4

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Cite this