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Specific heats of the charge density wave compounds o-TaS and (TaSe ) I (2002)

Starešinić, D. ; Kiš, A. ; Biljaković, K. ; [weitere]

Springer

The European physical journal 29 (2002), S. 71-77

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ISSN: 1434-6036

Schlagwort(e): PACS. 71.45.Lr Charge-density-wave systems – 65.40.Ba Heat capacity – 64.70.Kb Solid solid transitions – 64.70.Pf Glass transitions

Quelle: Springer Online Journal Archives 1860-2000

Thema: Physik

Notizen: Abstract: Specific heats of the charge-density-wave compounds o-TaS3 and (TaSe4)2I have been measured over the wide temperature interval 10 K-300 K. Both systems exhibit strong non-Debye behavior. Very weak and broad anomalies are observed at the Peierls transition temperatures. For o-TaS3, the change in the curvature of the specific heat occurs at temperature of 40 K where glass transition has been deduced from dielectric measurements, and an extended scaling analysis suggests that the glass transition is associated with a dynamical cross over in length scales. We briefly discuss the characteristics and physical origins of the anomalies at both the Peierls and glass transitions.

Materialart: Digitale Medien

URL: http://dx.doi.org/10.1140/epjb/e2002-00263-1

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