Thursday, April 6, 2006, 1:30 pm — Small Seminar Room, Bldg. 510
Thermal and quantum fluctuations in the phase of a 2D or quasi-2D superconductor are expected to be important when the superconductor is near the super-to-insulator transition. Examples include strongly underdoped cuprates and very thin films of conventional materials like Mo-Ge alloys. We have probed phase fluctuations through measurements of the superfluid density (magnetic penetration depth) in such materials and find that in severely underdoped cuprates phase fluctuations are present, but much less important than expected.
Hosted by: Ivan Bozovic / Adrian Gozar
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