FIZIKA A 9 (2000) 4 , 169-176

LETTER TO THE EDITOR

ANISOTROPIC THERMOELECTRIC PROPERTIES OF (TaSe₄)₂I

ANTE BILUŠIĆ^a, IVA TKALČEC^a, HELMUTH BERGER^b, LASLO FORRO^c
and ANA SMONTARA^a

^aInstitute of Physics, Bijenička 46, P. O. Box 304, HR-10001 Zagreb, Croatia

^cInstitut de Genie Atomique, Ecole Polytechnique Federale de Lausanne, CH-1015 Lausanne, Switzerland

Received 4 September 2000; Accepted 11 December 2000

Measurements of temperature dependence of the electrical conductivity and thermopower along the chain and perpendicular-to-chain directions of the inorganic conductor (TaSe₄)₂I, exhibiting the charge density wave transition, are reported. The electrical conductivity and thermopower along the chain and perpendicular-to-the chain direction were measured for the first time on the same sample. Measurements in both directions enable obtaining an information on the predominant carriers along different crystallographic directions which may be different due to different energy gaps.

PACS numbers: 72.15.N, 84.32.F, 72.20.P
UDC 537.12, 537.32

Keywords: quasi-one-dimensional systems, charge density waves, electrical conductivity, thermopower, anisotropy

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