Numéro |
J. Phys. IV France
Volume 131, December 2005
|
|
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Page(s) | 349 - 350 | |
DOI | https://doi.org/10.1051/jp4:2005131089 | |
Publié en ligne | 18 janvier 2006 |
International Workshop on Electronic Crystals
S. Brazovskii, P. Monceau and N. Kirova
J. Phys. IV France 131 (2005) 349-350
DOI: 10.1051/jp4:2005131089
Institute of Physics, Bijenicka 46, 10000 Zagreb, Croatia
© EDP Sciences 2005
S. Brazovskii, P. Monceau and N. Kirova
J. Phys. IV France 131 (2005) 349-350
DOI: 10.1051/jp4:2005131089
New contribution to the thermopower of o-TaS3
Z. Simek, P. Puntijar, M. Ocko, D. Staresinic and K. BiljakovicInstitute of Physics, Bijenicka 46, 10000 Zagreb, Croatia
Abstract
We report on the thermopower investigation of the
pure orthorhombic TaS3 in temperature interval from 300 K down
to 25 K and the doped one by Nb (Ta0.995Nb0.005S3)
down to 80 K. Our results are in gross in agreement with the
previously reported thermopower. However, we give an evidence of a
change of slope at 150 K, before reaching a well defined maximum at
100 K. Below the maximum the thermopower shows hysteretic behavior
in temperature cycling. This effect disappears at 60 K, where the
thermopower becomes negative and finally drops into a minimum at 30
K. This characteristic change of sign comes from the contribution of
the soliton-like excitations.
© EDP Sciences 2005