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Glass-like behavior in the CDW state of the quasi-one-dimensional conductor K0.3MoO3

Title data

Hosseini, Khalil ; Brütting, Wolfgang ; Schwoerer, Markus ; Riedel, E. ; van Smaalen, Sander ; Biljaković, K. ; Starešinić, Damir:
Glass-like behavior in the CDW state of the quasi-one-dimensional conductor K0.3MoO3.
In: Journal de Physique 4. Vol. 9 (1999) Issue PR10 . - Pr10-41.
ISSN 1155-4339
DOI: https://doi.org/10.1051/jp4:19991009

Abstract in another language

By measuring the electric conductivity, dielectric susceptibility and thermally stimulated depolarization of the charge density wave system K0.3MoO3, we have found two relaxation processes in the temperature range between 100-10 K. The main relaxation process representing the CDW viscosity shows a critical slowing down behavior and disappears from the measured frequency window at about 28 K. The second one appears below 50 K and becomes the dominant relaxation below 30 K with a relaxation time decreasing with temperature slower than thermally activated, probably corresponding to tunneling between pinned CDW regions. The evidence for this interpretation comes from the temperature and frequency dependence of the conductivity. Together, this gives evidence for a glass-like behavior similar to chalcogenide glass semiconductors.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography > Chair Crystallography - Univ.-Prof. Dr. Sander van Smaalen
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 07 Apr 2016 09:13
Last Modified: 22 Apr 2016 13:55
URI: https://eref.uni-bayreuth.de/id/eprint/32127