Prof. Ying Lu
, Penn State
[Host: Y. Yoon]
We have carried out experiments on ultrathin superconducting cylinders,
which revealed the existence of a destructive regime, the loss of
superconductivity around half-integer flux quanta even in the zero
temperature limit, predicted by de Gennes for doubly connected samples
with a diameter smaller than zero-temperature superconducting coherence
length [Y. Liu, et al., Science 294, 2332 (2001)]. More recently we have
done measurements on the superconductor-normal metal (S-N) transition
tuned by magnetic flux in these cylinders, and found evidence for the
formation of normal bands near the S-N transition.
Condensed Matter Seminar
Thursday, November 7, 2002
Physics Building, Room 204
Note special time.
Note special room.
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