Published September 8, 2010 | Version v1
Journal article Metadata-only

Raman study of the antiferromagnetic phase transitions in hexagonal Y MnO3 and LuMnO3

Creators

  • 1. Departement de Physique, Universite de Sherbrooke, 2500 Boulevard Universite, Sherbrooke, J1K 2R1 (Canada)
  • 2. Prokhorov General Physics Institute of the Russian Academy of Science, 38 Vavilov Street, 119991 Moscow (Russian Federation)
  • 3. Moscow Power Engineering Institute, 14 Krasnokazarmennaya Street, 105835 Moscow (Russian Federation)
  • 4. Institute of Solid State Physics, Bulgarian Academy of Sciences, 1784 Sofia (Bulgaria)
  • 5. Universite Paris-Sud, ICMMO/LPCES, Batiment 410, UMR8182, Orsay, F-91405 (France)

Description

The A1, E1 and E2 Raman active modes in hexagonal Y MnO3 and LuMnO3 single crystals are studied as a function of temperature and compared with previous measurements. In addition to anharmonicity, some phonon frequencies show below TN anomalous temperature dependences that reflect the atomic displacements while some other phonon frequencies are more sensitive to the spin-phonon coupling.

Availability note (English)

Available from http://dx.doi.org/10.1088/0953-8984/22/35/356002

Additional details

Identifiers

DOI
10.1088/0953-8984/22/35/356002;
PII
S0953-8984(10)54962-2;

Publishing Information

Journal Title
Journal of Physics. Condensed Matter
Journal Volume
22
Journal Issue
35
Journal Page Range
[5 p.]
ISSN
0953-8984
CODEN
JCOMEL

INIS

Country of Publication
United Kingdom
Country of Input or Organization
International Atomic Energy Agency (IAEA)
INIS RN
42027860
Subject category
S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY;
Descriptors DEI
ANTIFERROMAGNETISM; ATOMIC DISPLACEMENTS; COUPLING; HEXAGONAL LATTICES; LUTETIUM COMPOUNDS; MANGANATES; MONOCRYSTALS; NEEL TEMPERATURE; PHASE TRANSFORMATIONS; PHONONS; RAMAN SPECTRA; SPIN; TEMPERATURE DEPENDENCE; YTTRIUM COMPOUNDS
Descriptors DEC
ANGULAR MOMENTUM; CRYSTAL LATTICES; CRYSTAL STRUCTURE; CRYSTALS; MAGNETISM; MANGANESE COMPOUNDS; OXYGEN COMPOUNDS; PARTICLE PROPERTIES; PHYSICAL PROPERTIES; PHYSICAL RADIATION EFFECTS; QUASI PARTICLES; RADIATION EFFECTS; RARE EARTH COMPOUNDS; SPECTRA; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; TRANSITION TEMPERATURE