THE USE OF THERMOPOWER AND DC ELECTRICAL-CONDUCTIVITY MEASUREMENTS TODETERMINE THE DYNAMIC RESISTANCE AND FERMI-SURFACE DISTORTION OF A THIN-FILM OF GOLD

Authors
STEELE CB BEYNON J
Citation
Cb. Steele et J. Beynon, THE USE OF THERMOPOWER AND DC ELECTRICAL-CONDUCTIVITY MEASUREMENTS TODETERMINE THE DYNAMIC RESISTANCE AND FERMI-SURFACE DISTORTION OF A THIN-FILM OF GOLD, International journal of electronics, 76(5), 1994, pp. 987-991
Citations number
12
Categorie Soggetti
Engineering, Eletrical & Electronic
Journal title
International journal of electronics → ACNP
ISSN journal
00207217
Volume
76
Issue
5
Year of publication
1994
Pages
987 - 991
Database
ISI
SICI code
0020-7217(1994)76:5<987:TUOTAD>2.0.ZU;2-0
Abstract
The dynamic resistance of an evaporated thin film of gold is calculate d from the effective resistance (from thermopower measurements) and th e ohmic resistance (from two-terminal measurements). The dynamic resis tance is positive over the temperature range 323-493 K. A positive the rmopower at room temperature indicates that the Fermi surface is consi derably distorted along the [111] direction. Thermal expansion is iden tified to occur between 323-393 K and 414-443 K and thermal compressio n between 393-413 K and 443-493 K.