| Issue |
Europhys. Lett.
Volume 40, Number 6, December II 1997
|
|
|---|---|---|
| Page(s) | 673 - 678 | |
| Section | Condensed matter: electronic structure, electrical, magnetic and optical properties | |
| DOI | https://doi.org/10.1209/epl/i1997-00521-4 | |
| Published online | 01 September 2002 | |
Off-diagonal Seebeck effect and anisotropic thermopower in Bi2Sr2CaCu2O8 thin films
1
Institut für Experimentelle und Angewandte Physik,
Universität Regensburg 93040 Regensburg, Germany
2
Institut für Angewandte Physik,
Johannes-Kepler-Universität Linz, 4040 Linz, Austria
Received:
9
July
1997
Accepted:
1
November
1997
The anisotropy 
of the thermopower in thin films of the
high-Tc
superconductor 
is investigated using
off–c-axis epitaxial film growth and the off-diagonal Seebeck effect. The
measurements represent a new method for the investigation of anisotropic
transport properties in solids, taking advantage of the availability of
oriented grown crystalline thin films instead of using bulk crystals.
First results for the temperature dependence 
in
thin films are presented and described
within a two-band model. Subjecting the films to heat treatments in
different gases at relatively low temperatures, could reversibly
be changed in a wide range.
PACS: 73.50.Lw – Thermoelectric effects / 74.72.Hs – Bi-based cuprates / 74.25.Fy – Transport properties (electric and thermal conductivity, thermoelectric effects, etc.)
© EDP Sciences, 1997
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