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k=0 magnetic structure and absence of ferroelectricity in SmFeO3.
Kuo, C-Y; Drees, Y; Fernández-Díaz, M T; Zhao, L; Vasylechko, L; Sheptyakov, D; Bell, A M T; Pi, T W; Lin, H-J; Wu, M-K; Pellegrin, E; Valvidares, S M; Li, Z W; Adler, P; Todorova, A; Küchler, R; Steppke, A; Tjeng, L H; Hu, Z; Komarek, A C.
Afiliación
  • Kuo CY; Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany.
  • Drees Y; Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany.
  • Fernández-Díaz MT; Institut Laue-Langevin, 38042 Grenoble, France.
  • Zhao L; Institute of Physics, Academia Sinica, Taipei 11529, Taiwan.
  • Vasylechko L; Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany and Lviv Polytechnic National University, 12 Bandera Street, 79013 Lviv, Ukraine.
  • Sheptyakov D; Laboratory for Neutron Scattering and Imaging, Paul Scherrer Institut, CH-5232 Villigen PSI, Switzerland.
  • Bell AM; HASYLAB at DESY, Notkestrasse 85, 22607 Hamburg, Germany.
  • Pi TW; National Synchrotron Radiation Research Center (NSRRC), 101 Hsin-Ann Road, Hsinchu 30077, Taiwan.
  • Lin HJ; National Synchrotron Radiation Research Center (NSRRC), 101 Hsin-Ann Road, Hsinchu 30077, Taiwan.
  • Wu MK; Institute of Physics, Academia Sinica, Taipei 11529, Taiwan.
  • Pellegrin E; CELLS-ALBA Synchrotron Radiation Facility, Carretera BP 1413, km 3.3, E-08290 Cerdanyola del Vallès, Barcelona, Spain.
  • Valvidares SM; CELLS-ALBA Synchrotron Radiation Facility, Carretera BP 1413, km 3.3, E-08290 Cerdanyola del Vallès, Barcelona, Spain.
  • Li ZW; Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany.
  • Adler P; Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany.
  • Todorova A; Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany.
  • Küchler R; Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany.
  • Steppke A; Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany.
  • Tjeng LH; Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany.
  • Hu Z; Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany.
  • Komarek AC; Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Strasse 40, 01187 Dresden, Germany.
Phys Rev Lett ; 113(21): 217203, 2014 Nov 21.
Article en En | MEDLINE | ID: mdl-25479519
ABSTRACT
SmFeO3 has attracted considerable attention very recently due to its reported multiferroic properties above room temperature. We have performed powder and single crystal neutron diffraction as well as complementary polarization dependent soft X-ray absorption spectroscopy measurements on floating-zone grown SmFeO3 single crystals in order to determine its magnetic structure. We found a k=0 G-type collinear antiferromagnetic structure that is not compatible with inverse Dzyaloshinskii-Moriya interaction driven ferroelectricity. While the structural data reveal a clear sign for magneto-elastic coupling at the Néel-temperature of ∼675 K, the dielectric measurements remain silent as far as ferroelectricity is concerned.
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Banco de datos: MEDLINE Idioma: En Año: 2014 Tipo del documento: Article
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Banco de datos: MEDLINE Idioma: En Año: 2014 Tipo del documento: Article