Origin of the large polarization in multiferroic YMnO 3 thin films revealed by soft- and hard-x-ray diffraction

H. Wadati, J. Okamoto, M. Garganourakis, V. Scagnoli, U. Staub, Y. Yamasaki, H. Nakao, Y. Murakami, Masahito Mochizuki, M. Nakamura, M. Kawasaki, Y. Tokura

Research output: Contribution to journalArticle

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Abstract

We investigated the magnetic structure of an orthorhombic YMnO 3 thin film by resonant soft x-ray and hard x-ray diffraction. We observed a temperature-dependent incommensurate magnetic reflection below 45 K and a commensurate lattice-distortion reflection below 35 K. These results demonstrate that the ground state is composed of coexisting E-type and cycloidal states. Their different ordering temperatures clarify the origin of the large polarization to be caused by the E-type antiferromagnetic states in the orthorhombic YMnO 3 thin film.

Original languageEnglish
Article number047203
JournalPhysical Review Letters
Volume108
Issue number4
DOIs
Publication statusPublished - 2012 Jan 24
Externally publishedYes

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x ray diffraction
polarization
thin films
ground state
temperature
x rays

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Wadati, H., Okamoto, J., Garganourakis, M., Scagnoli, V., Staub, U., Yamasaki, Y., ... Tokura, Y. (2012). Origin of the large polarization in multiferroic YMnO 3 thin films revealed by soft- and hard-x-ray diffraction. Physical Review Letters, 108(4), [047203]. https://doi.org/10.1103/PhysRevLett.108.047203

Origin of the large polarization in multiferroic YMnO 3 thin films revealed by soft- and hard-x-ray diffraction. / Wadati, H.; Okamoto, J.; Garganourakis, M.; Scagnoli, V.; Staub, U.; Yamasaki, Y.; Nakao, H.; Murakami, Y.; Mochizuki, Masahito; Nakamura, M.; Kawasaki, M.; Tokura, Y.

In: Physical Review Letters, Vol. 108, No. 4, 047203, 24.01.2012.

Research output: Contribution to journalArticle

Wadati, H, Okamoto, J, Garganourakis, M, Scagnoli, V, Staub, U, Yamasaki, Y, Nakao, H, Murakami, Y, Mochizuki, M, Nakamura, M, Kawasaki, M & Tokura, Y 2012, 'Origin of the large polarization in multiferroic YMnO 3 thin films revealed by soft- and hard-x-ray diffraction', Physical Review Letters, vol. 108, no. 4, 047203. https://doi.org/10.1103/PhysRevLett.108.047203
Wadati, H. ; Okamoto, J. ; Garganourakis, M. ; Scagnoli, V. ; Staub, U. ; Yamasaki, Y. ; Nakao, H. ; Murakami, Y. ; Mochizuki, Masahito ; Nakamura, M. ; Kawasaki, M. ; Tokura, Y. / Origin of the large polarization in multiferroic YMnO 3 thin films revealed by soft- and hard-x-ray diffraction. In: Physical Review Letters. 2012 ; Vol. 108, No. 4.
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