Magnetoelastic effects in multiferroic HoMnO3
نویسندگان
چکیده
منابع مشابه
Local spin-coupled distortions in multiferroic hexagonal HoMnO3
Local structural measurements have been performed on hexagonal HoMnO3 in order to ascertain the specific changes in bond distances, which accompany magnetic ordering transitions. The transition from the paramagnetic to the antiferromagnetic noncollinear phase near 70 K is dominated by changes in the a-b plane Mn-Mn bond distances. The spin rotation transition near 40 K involves both Mn-Mn and n...
متن کاملOrigin of electric-field-induced magnetization in multiferroic HoMnO3.
We have performed polarized and unpolarized small angle neutron scattering experiments on single crystals of HoMnO(3) and have found that an increase in magnetic scattering at low momentum transfers begins upon cooling through temperatures close to the spin reorientation transition at T(SR) approximately 40 K. We attribute the increase to an uncompensated magnetization arising within antiferrom...
متن کاملNeutron-scattering studies of magnetism in multiferroic HoMnO3 „invited..
Hexagonal HoMnO3 is a frustrated antiferromagnet TN=72 K ferroelectric TC=875 K with a rich magnetic phase diagram consisting of multiple temperatureand field-dependent phases. Previously observed anomalies in the dielectric constant at magnetic phase transitions indicate strong coupling between the ferroelectricity and magnetism. Neutron-diffraction measurements in a magnetic field reveal new ...
متن کاملField-induced linear magnetoelastic coupling in multiferroic TbMnO3
N. Aliouane,1 D. N. Argyriou,1 J. Strempfer,2 I. Zegkinoglou,2 S. Landsgesell,1 and M. v. Zimmermann3 1Hahn-Meitner-Institut, Glienicker Strasse 100, Berlin D-14109, Germany 2Max-Planck-Institut für Festkörperforschung, Heisenbergstraße 1, 70569 Stuttgart, Germany 3Hamburger Synchrotronstrahlungslabor HASYLAB at Deutsches Elektronen-Synchrotron DESY, Notkestraße 85, 22603 Hamburg, Germany Recei...
متن کاملStrong spin-lattice coupling in multiferroic HoMnO3: Thermal expansion anomalies and pressure effect
C. dela Cruz,1 F. Yen,1 B. Lorenz,1 Y. Q. Wang,1 Y. Y. Sun,1 M. M. Gospodinov,2 and C. W. Chu1,3,4 1Department of Physics and TCSUH, University of Houston, Houston, Texas 77204-5002, USA 2Institute of Solid State Physics, Bulgarian Academy of Sciences, 1784 Sofia, Bulgaria 3Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, California 94720, USA 4Hong Kong University of Science ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Solid State Communications
سال: 2014
ISSN: 0038-1098
DOI: 10.1016/j.ssc.2013.11.019