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Please note that all times are shown in the time zone of the conference. The current conference time is: 6th Dec 2022, 02:41:59am CET
MS-68: Symmetry aspects of magnetic order and magnetic properties
2:45pm - 5:10pm
Session Chair: Mois Ilia Aroyo Session Chair: Margarida Henriques
50 1st floor
Invited: Laura Chaix (France), Fabio Orlandi (UK)
The symmetry of commensurate and incommensurate magnetic structures can be unambiguously described using magnetic space and superspace groups. The description of symmetry of the magnetically ordered lattices and the involved order parameters are central concepts to fully characterize magnetic phases: symmetry provides a robust description of the spin- configuration modes and its constraints consistent with the parent paramagnetic phase and the magnetic propagation vector. Further, the assignment of a symmetry group for a magnetic phase conveys unequivocally other important properties coupled with the magnetic ordering. Symmetry-governed properties associated with magnetic transitions include ferroelectric polarization, ferromagnetic magnetization, various Hall-effect-type transport properties, and multiferroicity.
For all abstracts of the session as prepared for Acta Crystallographica see PDF in Introduction, or individual abstracts below.
The advances and challenges of the symmetry role in the study of magnetic structures and properties is the focus of attention of the microsymposium.
2:45pm - 2:50pm
Introduction to session
Mois Ilia Aroyo, Margarida Henriques
2:50pm - 3:20pm
Ba3NbFe3Si2O14:a model system to study magnetic chirality
Peculiar commensurate spin density wave in CeAuSb2 under uniaxial stress
Fabio Orlandi1, Richard Waite1,2, Dmitry Sokolov3, Raquel A. Ribeiro4, Paul C. Canfield4, Pascal Manuel1, Dimitry D. Khalyavin1, Clifford W. Hicks4, Stephen M. Hayden2
1ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, OX11 0QX, United Kingdom; 2H. H. Wills Physics Laboratory, University of Bristol, Bristol, BS8 1TL, United Kingdom; 3Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Straße 40, 01187 Dresden, Germany; 4Ames Laboratory, U.S. DOE, and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, United States
3:50pm - 4:10pm
Absolute sign of the Dzyaloshinskii-Moriya interaction in weak ferromagnets disclosed by polarized neutron diffraction
Henrik Friedrich Thoma1,2, Vladimir Hutanu1,2, Georg Roth2, Manuel Angst3
1Jülich Centre for Neutron Science (JCNS) at Heinz Maier-Leibnitz Zentrum (MLZ), Forschungszentrum Jülich GmbH, 85748 Garching, Germany; 2Institute of Crystallography, RWTH Aachen University, 52056 Aachen, Germany; 3Jülich Centre for Neutron Science JCNS and Peter Grünberg Institut PGI, JARA-FIT, Forschungszentrum Jülich GmbH, 52425 Jülich, Germany
4:10pm - 4:30pm
Resonant x-ray scattering of magnetic anisotropy and orbital ordering in Ca2RuO4
Diamond Light Source Ltd, Didcot, United Kingdom
4:30pm - 4:50pm
Low-temperature magnetic state of Ho7Rh3 studied by neutron diffraction and ac magnetic susceptibility
Artem Vaulin1, Nikolay Baranov1,2, Alexander Prekul1, Takanori Tsutaoka3, Andey Gubkin1,2
1M.N. Mikheev Institute of Metal Physics of the Ural Branch of the Russian Academy of Sciences, Ekaterinburg, Russian Federation; 2UrFU them. the first President of Russia B.N. Yeltsin, Yekaterinburg, Russian Federation; 3Graduate School of Education, Hiroshima University, Higashi-Hiroshima, Japan