Transverse magnetothermoelectric properties of an indium single crystal
Recently published results show that, at temperatures of the order of very-much-less-than/sub D//10, Al and In exhibit large changes in the thermopower when a high magnetic field is applied transverse to the samples. To improve our understanding of this effect, we have experimentally determined six independent transport coefficients of an In single crystal with a magnetic field (up to 2 T) along (001) at temperatures between 2.5 and 8 K. This procedure enables us to ascertain which quantities make the major contribution to the observed thermopower change; it is found that the Hall resistivity rho/sub yx/ and the Nernst--Ettingshausen coefficient epsilon''/sub yx/ play the major role. We are able to prove that phonon drag is mainly responsible for the effects.
- Research Organization:
- Physics Department, Michigan State University, East Lansing, Michigan
- OSTI ID:
- 6807647
- Journal Information:
- J. Low Temp. Phys.; (United States), Vol. 30:5
- Country of Publication:
- United States
- Language:
- English
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