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Anomalous thermal conductivity of single crystal Cu2Te2O5Cl2 (CROSBI ID 111934)

Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija

Smontara, Ana ; Bilušić, Ante ; Jagličić, Z. ; Zorko, A. ; Dolinšek J. ; Berger, H. Anomalous thermal conductivity of single crystal Cu2Te2O5Cl2 // Applied magnetic resonance, 29 (2005), 2; 261-266. doi: 10.1007/BF03167013

Podaci o odgovornosti

Smontara, Ana ; Bilušić, Ante ; Jagličić, Z. ; Zorko, A. ; Dolinšek J. ; Berger, H.

engleski

Anomalous thermal conductivity of single crystal Cu2Te2O5Cl2

A strong increase of the thermal conductivity is observed at the phase transition (Tc =18.2 K) in Cu2Te2O5Cl2 single crystal. This behavior is compared with that of spin-Peierls system NaV2O5, where similar experimental observation has been found, and the conventional spin-Peierls system CuGeO3, where a modest kink in the thermal conductivity curve has been observed. The strong increase of the thermal conductivity at Tc in Cu2Te2O5Cl2 could be partially attributed to the opening of the energy gap in the magnetic excitation spectrum evident from the magnetic susceptibility measurements. However, the main reason for the anomaly of the thermal conductivity could be explained by a strong spin-lattice coupling in this system what is in agreement with the preliminary X-band ESR measurement.

Cu2Te2O5Cl2; phase transition; thermal conductivity; magnetic susceptibility

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Podaci o izdanju

29 (2)

2005.

261-266

objavljeno

0937-9347

10.1007/BF03167013

Povezanost rada

Fizika

Poveznice
Indeksiranost