Microwave Studies on FeSe Superconductors.

Speaker: 
Meng Li
Event Date and Time: 
Tue, 2016-10-25 15:00 - 16:00
Location: 
Room: 311 AMPEL 2355 East Mall
Local Contact: 
Doug Bonn
Meng is giving a public talk based on his Masters' thesis.

A particularly interesting compound among the family of Fe-based superconductors is FeSe which possesses several advantageous features for measuring and elucidating its superconducting properties. The microwave electrodynamic properties of stoichiometric FeSe were measured by a cavity perturbation technique based on a 940 MHz loop-gap resonator. Measurements surprisingly show that c-axis surface resistance and conductivity exhibit qualitatively similar behavior with those observed in the ab-plane at the superconducting state. This result implies that the charge transfer between FeSe-planes is enhanced by the development of long transport quasiparticle lifetimes below Tc.

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