Hexagonal frustrated RMnO{sub 3} manganites (R = Y, Lu) under high pressure

Journal Article · Tue May 15 00:00:00 EDT 2007 · Crystallography Reports

DOI:https://doi.org/10.1134/S1063774507030108· OSTI ID:21090925

Kichanov, S E ^[1]; Lee, S; Park, J -G ^[2]; Glazkov, V P ^[3]; Savenko, B N ^[1]

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1. Joint Institute for Nuclear Research (Russian Federation)
2. Sungkyunkwan University, Department of Physics and Institute of Basic Science (Korea, Republic of)
3. 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, Journal Name: Crystallography Reports Journal Issue: 3 Vol. 52; ISSN 1063-7745; ISSN CYSTE3
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
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