Giant tunability of ferroelectric polarization in GdMn2O 5

N. Lee, C. Vecchini, Y. J. Choi, L. C. Chapon, A. Bombardi, P. G. Radaelli, S. W. Cheong

Research output: Contribution to journalArticle

83 Citations (Scopus)

Abstract

Giant tunability of ferroelectric polarization (ΔP=5000 μC/m2) in the multiferroic GdMn2O5 with external magnetic fields is discovered. The detailed magnetic model from x-ray magnetic scattering results indicates that the Gd-Mn symmetric exchange striction plays a major role in the tunable ferroelectricity of GdMn2O5, which is in distinction from other compounds of the same family. Thus, the highly isotropic nature of Gd spins plays a key role in the giant magnetoelectric coupling in GdMn2O5. This finding provides a new handle in achieving enhanced magnetoelectric functionality.

Original languageEnglish
Article number137203
JournalPhysical Review Letters
Volume110
Issue number13
DOIs
Publication statusPublished - 2013 Mar 26

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ferroelectricity
polarization
scattering
magnetic fields
x rays

All Science Journal Classification (ASJC) codes

  • Physics and Astronomy(all)

Cite this

Lee, N., Vecchini, C., Choi, Y. J., Chapon, L. C., Bombardi, A., Radaelli, P. G., & Cheong, S. W. (2013). Giant tunability of ferroelectric polarization in GdMn2O 5. Physical Review Letters, 110(13), [137203]. https://doi.org/10.1103/PhysRevLett.110.137203
Lee, N. ; Vecchini, C. ; Choi, Y. J. ; Chapon, L. C. ; Bombardi, A. ; Radaelli, P. G. ; Cheong, S. W. / Giant tunability of ferroelectric polarization in GdMn2O 5. In: Physical Review Letters. 2013 ; Vol. 110, No. 13.
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Lee, N, Vecchini, C, Choi, YJ, Chapon, LC, Bombardi, A, Radaelli, PG & Cheong, SW 2013, 'Giant tunability of ferroelectric polarization in GdMn2O 5', Physical Review Letters, vol. 110, no. 13, 137203. https://doi.org/10.1103/PhysRevLett.110.137203

Giant tunability of ferroelectric polarization in GdMn2O 5. / Lee, N.; Vecchini, C.; Choi, Y. J.; Chapon, L. C.; Bombardi, A.; Radaelli, P. G.; Cheong, S. W.

In: Physical Review Letters, Vol. 110, No. 13, 137203, 26.03.2013.

Research output: Contribution to journalArticle

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AB - Giant tunability of ferroelectric polarization (ΔP=5000 μC/m2) in the multiferroic GdMn2O5 with external magnetic fields is discovered. The detailed magnetic model from x-ray magnetic scattering results indicates that the Gd-Mn symmetric exchange striction plays a major role in the tunable ferroelectricity of GdMn2O5, which is in distinction from other compounds of the same family. Thus, the highly isotropic nature of Gd spins plays a key role in the giant magnetoelectric coupling in GdMn2O5. This finding provides a new handle in achieving enhanced magnetoelectric functionality.

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Lee N, Vecchini C, Choi YJ, Chapon LC, Bombardi A, Radaelli PG et al. Giant tunability of ferroelectric polarization in GdMn2O 5. Physical Review Letters. 2013 Mar 26;110(13). 137203. https://doi.org/10.1103/PhysRevLett.110.137203