Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session X47: Multiferroics and Magnetoelectricity in Complex Oxides
11:15 AM–2:15 PM,
Friday, March 6, 2020
Room: 710/712
Sponsoring
Units:
GMAG DMP DCOMP
Chair: Natalia Perkins, University of Minnesota
Abstract: X47.00001 : THz spectroscopy of BiFeO3 in the magnetic-field-induced canted AFM state.*
Presenter:
Johan Viirok
(National Institute of Chemical Physics and Biophysics)
Authors:
Johan Viirok
(National Institute of Chemical Physics and Biophysics)
Laur Peedu
(National Institute of Chemical Physics and Biophysics)
Urmas Nagel
(National Institute of Chemical Physics and Biophysics)
Toomas Room
(National Institute of Chemical Physics and Biophysics)
Dávid Szaller
(Institute of Solid State Physics, Vienna University of Technology, Austria)
Vilmos Kocsis
(Department of Physics, Budapest University of Technology and Economics, Hungary)
Sandor Bordacs
(Department of Physics, Budapest University of Technology and Economics, Hungary)
Istvan Kezsmarki
(Experimental Physics V, Center for Electronic Correlations and Magnetism, Institute of Physics, University of Augsburg)
Hans Engelkamp
(High Field Magnet Laboratory, Radboud University, The Netherlands)
Dima Kamensky
(High Field Magnet Laboratory, Radboud University, The Netherlands)
Komalavalli Thirunavukkuarasu
(National High Magnetic Field Laboratory, Tallahassee, FL)
Mykhaylo Ozerov
(National High Magnetic Field Laboratory, Tallahassee, FL)
Dmitry Smirnov
(National High Magnetic Field Laboratory, Tallahassee, FL)
Jurek Krzystek
(National High Magnetic Field Laboratory, Tallahassee, FL)
Yukihiro Ozaki
(National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan)
Toshimitsu Ito
(National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan)
Yasuhide Tomioka
(National Institute of Advanced Industrial Science and Technology, Tsukuba, Japan)
Trinanjan Datta
(Department of Chemistry and Physics, Augusta University, Augusta, GA)
Randy Fishman
(Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, TN)
Here we present the THz spectroscopy results for three different magnetic field orientation, parallel to hexagonal c axis, perpendicular and parallel to a axis, measured on the single FE domain crystals grown by the laser-diode heating floating-zone method [T. Ito et al., Cryst. Growth Des. 11 (2011) 5139]. The dependence of mode frequencies as a function of magnetic field were studied up to 35T at liquid He temperatures. In light of these experimental results, a microscopic model is proposed for the canted AF phase.
*Part of the research was supported by the by the Estonian Ministry of Education and Research Grant IUT23-3 and by the European Regional Development Fund project TK134.
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