BEGIN:VCALENDAR VERSION:2.0 PRODID:Data::ICal 0.22 BEGIN:VEVENT DESCRIPTION:Yoonseok Lee\, University of Florida\n\n
\n In the superfluid phases of liquid 3He with p-wave spin triplet pairing\, all of the contin uous symmetry except for the translational symmetry are broken\, exhibitin g extraordinarily rich physical phenomena. In particular\, the surface sca ttering in unconventional superfluids/superconductors induces quasi-partic le sub-gap bound states spatially localized near the surface within the co herence length xo\, called the Andreev surface bound states (ASBS). This g eneric nature of the unconventional order parameter combined with the exot ic symmetries in the superfluid phases of 3He lends an unfathomable source of fascinating physical phenomena predicted to exist in confined geometry : crystalline superfluid phase\, Majorana fermionic excitations\, and heli cal spin current in the B-phase\, and the edge current and the chiral edge state in the A-phase\, many of which are of topological origin. We have d eveloped micro-machined probes or micro-electro-mechanical system (MEMS) d evices for this purpose. In this talk\, we will discuss the design and the operation of the device\, and the results obtained using these devices in air\, liquid 3He and also in liquid 4He in a wide range of temperature do wn to submillikelvin range. Our work demonstrates great potential of the d evice in a wide range of experiments in quantum fluids.
\n DTSTART:20150326T193000Z LOCATION:Physics Building\, Room 204 SUMMARY:Micro-machined probes for the study of quantum fluids END:VEVENT END:VCALENDAR