PT Journal
AU Aksaev, EE
   Gershenzon, EM
   Gol'tsman, GN
   Semenov, AD
   Sergeev, AV
TI Interaction of electrons with thermal phonons in YBa[sub:2]Cu[sub:3]O[sub:7-δ] films at low temperatures
SO JETP Lett.
JI JETP Lett.
PY 1989
BP 283
EP 286
VL 50
IS 5
DE YBCO HTS films
AB The time of electron-phonon interaction tau(eph) in YBaCuO films at low temperatures is studied. This is measured as the time of resistance relaxation in the resistive state of the superconducter, and is also determined from the increase in resistance under the action of radiation. Consistent results of these methods show that resistance relaxation in the resistive state is caused by cooling of the electron subsystem with respect to the phonon subsystem. The time tau(eph) is found to be inversely proportional to the temperature and comes to 80 ps when T = 1.6 K and 5 ps when T = 30 K. 6 refs.
ER