THERMAL-CONDUCTIVITY OF PURE AND SI-DOPED CUGEO3

Authors
SALCE B DEVOILLE L CALEMCZUK R BUZDIN AI DHALENNE G REVCOLEVSCHI A
Citation
B. Salce et al., THERMAL-CONDUCTIVITY OF PURE AND SI-DOPED CUGEO3, Physics letters. A, 245(1-2), 1998, pp. 127-132
Citations number
10
Categorie Soggetti
Physics
Journal title
Physics letters. A → ACNP
ISSN journal
03759601
Volume
245
Issue
1-2
Year of publication
1998
Pages
127 - 132
Database
ISI
SICI code
0375-9601(1998)245:1-2<127:TOPASC>2.0.ZU;2-4
Abstract
The thermal conductivity K(T) of pure and Si-doped CuGeO3 single cryst als has been measured in the temperature range 2-40 K, in order to stu dy the influence of the spin-Peierls transition on the heat transport. Anisotropic effects along the three main crystallographic directions have been found. Changes in K(T) due to cyclings at room temperature h ave been observed. The results are qualitatively interpreted by assumi ng that phonons and pseudofermions contribute to the heat transport. ( C) 1998 Elsevier Science B.V.