S. Zeuner et al., NERNST EFFECT IN TL-BA-CA-CU-O HIGH-T(C) SUPERCONDUCTING THIN-FILMS, Physical review. B, Condensed matter, 49(13), 1994, pp. 9080-9083
The dynamical behavior of magnetic flux in superconducting Tl-Ba-Ca-Cu
-O films has been studied using the Nernst effect. Large temperature g
radients of approximately 10(5) K/cm and, correspondingly, large therm
al forces on flux lines were obtained by pulsed laser heating of films
. Due to the large thermal driving forces it was possible to observe,
at temperatures well below T(c), the transition from thermally assiste
d flux flow to flux creep and viscous flux flow.