J.K. Gimzewski, T.A. Jung, et al.
Surface Science
Hall-probe measurements of an YBa2Cu3O7- crystal in the range 0.11 K show a temperature-independent time-logarithmic magnetic relaxation. These results rule out conventional thermally activated flux creep, which predicts a T2/3 dependence at the lowest temperatures if one takes into account the dependence of the barrier on driving force in a simple one-dimensional model. They are consistent with a phenomenological theory assuming a quantum tunneling process for vortex kink motion. © 1991 The American Physical Society.
J.K. Gimzewski, T.A. Jung, et al.
Surface Science
I. Morgenstern, K.A. Müller, et al.
Physica B: Physics of Condensed Matter
J.H. Stathis, R. Bolam, et al.
INFOS 2005
M.A. Lutz, R.M. Feenstra, et al.
Surface Science