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