Published 2002
| Version v1
Publication
Electron transport properties of MgB2 in the normal state
Description
We report measurements of the resistivity, rho, and the Seebeck coefficient, S, of a MgB2 sintered sample, and compare S with theoretical calculations based on precise electronic structure calculations. rho is fitted well by a generalized Bloch-Gruneisen equation with a Debye temperature circle minus(R) of 1050 K. S is given by the sum of a, diffusive and a phonon drag term and the behavior in the temperature region T-c < T < 0.1circle minus(R) follows the relationship AT + BT3, The phonon drag term indicates a strong electron-phonon interaction. The diffusive term, compared with calculations, suggests that sigma bands give the main contribution to the Seebeck effect.
Additional details
Identifiers
- URL
- http://hdl.handle.net/11567/247613
- URN
- urn:oai:iris.unige.it:11567/247613
Origin repository
- Origin repository
- UNIGE