ELECTRON-PHONON QUENCHING IN GERMANIUM MICROCONTACTS

Authors
NGUYEN LH RIEGEL H ASENPALMER M GMELIN E
Citation
Lh. Nguyen et al., ELECTRON-PHONON QUENCHING IN GERMANIUM MICROCONTACTS, Physica. B, Condensed matter, 218(1-4), 1996, pp. 248-251
Citations number
14
Categorie Soggetti
Physics, Condensed Matter
Journal title
Physica. B, Condensed matter → ACNP
ISSN journal
09214526
Volume
218
Issue
1-4
Year of publication
1996
Pages
248 - 251
Database
ISI
SICI code
0921-4526(1996)218:1-4<248:EQIGM>2.0.ZU;2-U
Abstract
We studied the thermoelectric voltage of germanium point contacts as a function of temperature for various contact sizes and doping concentr ations. Reduction of the contact area causes a decrease of thermopower that originates from quenching of the phonon-drag contribution by bou ndary scattering when the mean free path of phonons becomes larger tha n the contact size.