The influence of the magnetic subsystem on the heat transport in CsMnCl.sub.3./sub. 2H.sub.2./sub.O

0375193 - FZÚ 2012 RIV DE eng J - Journal Article
Tkáč, V. - Tibenská, K. - Orendáčová, A. - Orendáč, M. - Šebek, Josef - Sechovský, V. - Anders, A. G. - Pavlík, V. - Feher, A.
The influence of the magnetic subsystem on the heat transport in CsMnCl₃ 2H₂O.
Physica Status Solidi B. Roč. 248, č. 12 (2011), s. 2834-2838. ISSN 0370-1972. E-ISSN 1521-3951
Institutional research plan: CEZ:AV0Z10100520
Keywords : insulators * magnetostriction * phase transitions * phonon scattering * thermal conductivity
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.316, year: 2011

The thermal conductivity of CsMnCl3·2H2O (CMC) – a quasi-one-dimensional antiferromagnet with spin 5/2 has been studied in the temperature range from 2 to 25 K in zero magnetic field. The analysis of the data performed within Debye model revealed the combined effect of the single-ion and volume magnetostriction in the vicinity of a phase transition. Thermal-conductivity calculations based on the model and corresponding experimental studies showed that the poor sample quality and small dimensions can suppress the manifestation of a spin–phonon coupling present in CMC.
Permanent Link: http://hdl.handle.net/11104/0207923