Hexagonal frustrated RMnO{sub 3} manganites (R = Y, Lu) under high pressure
- Joint Institute for Nuclear Research (Russian Federation)
- Sungkyunkwan University, Department of Physics and Institute of Basic Science (Korea, Republic of)
- Russian Research Centre 'Kurchatov Institute' (Russian Federation)
The crystalline and magnetic structures of YMnO{sub 3} and LuMnO{sub 3} hexagonal manganites under pressures of 0-6 GPa and in the temperature range 10-295 K have been investigated by neutron diffraction. Application of pressure leads to a significant decrease in the ordered magnetic moment of Mn ions (at T = 10 K) from 3.27 (0 GPa) to 1.52 {mu}{sub B} (5 GPa) for YMnO{sub 3} and from 2.48 (0 GPa) to 1.98 {mu}{sub B} (6 GPa) for LuMnO{sub 3}. Under high pressures, spin reorientation of Mn magnetic moments and a change in the symmetry of the antiferromagnetic structure are observed in YMnO{sub 3}. The relationship between the triangular lattice distortion parameter and the symmetry of the triangular antiferromagnetic state of RMnO{sub 3} hexagonal manganites is discussed.
- OSTI ID:
- 21090925
- Journal Information:
- Crystallography Reports, Vol. 52, Issue 3; Other Information: DOI: 10.1134/S1063774507030108; Copyright (c) 2007 Nauka/Interperiodica; Article Copyright (c) 2007 Pleiades Publishing, Inc; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7745
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ANTIFERROMAGNETISM
HEXAGONAL LATTICES
LUTETIUM COMPOUNDS
MAGNETIC MOMENTS
MANGANATES
MANGANESE IONS
NEUTRON DIFFRACTION
PRESSURE RANGE GIGA PA
SPIN
SYMMETRY
TEMPERATURE RANGE 0000-0013 K
TEMPERATURE RANGE 0013-0065 K
TEMPERATURE RANGE 0065-0273 K
TEMPERATURE RANGE 0273-0400 K
YTTRIUM COMPOUNDS