Condensed Matter Physics Seminar
Thursday, October 14, 1999, 2 p.m.
Plant Sciences Building, Room 1130
Precise measurements of the magnetic penetration depth in unconventional
(Loomis Laboratory of Physics, University of Illinois at Urbana-Champaign)
Abstract: A tunnel diode driven RF resonator was used for
precise measurements of the magnetic penetration depth at temperatures
down to 0.4 K and in magnetic fields up to 0.3 Tesla. Measurements
in both BEDT organic superconductors and electron-doped Nd1.85Ce0.15CuO4-x
have revealed new aspects of the symmetry of the order parameter.
Measurements of the field-dependent penetration depth in BiSrCaCuO-2212
indicate a thermally induced depinning transition at low temperatures.
Host: Richard Greene
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