BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//Physics & Astronomy - ECPv6.15.20//NONSGML v1.0//EN
CALSCALE:GREGORIAN
METHOD:PUBLISH
X-WR-CALNAME:Physics & Astronomy
X-ORIGINAL-URL:https://uwm.edu/physics
X-WR-CALDESC:Events for Physics & Astronomy
REFRESH-INTERVAL;VALUE=DURATION:PT1H
X-Robots-Tag:noindex
X-PUBLISHED-TTL:PT1H
BEGIN:VTIMEZONE
TZID:America/Chicago
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:20180311T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20181104T070000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:20190310T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20191103T070000
END:STANDARD
BEGIN:DAYLIGHT
TZOFFSETFROM:-0600
TZOFFSETTO:-0500
TZNAME:CDT
DTSTART:20200308T080000
END:DAYLIGHT
BEGIN:STANDARD
TZOFFSETFROM:-0500
TZOFFSETTO:-0600
TZNAME:CST
DTSTART:20201101T070000
END:STANDARD
END:VTIMEZONE
BEGIN:VEVENT
DTSTART;TZID=America/Chicago:20190725T143000
DTEND;TZID=America/Chicago:20190725T153000
DTSTAMP:20260527T194300
CREATED:20190723T201730Z
LAST-MODIFIED:20190723T201730Z
UID:10381461-1564065000-1564068600@uwm.edu
SUMMARY:Physics Colloquium - Goutam Sheet
DESCRIPTION:Goutam Sheet\, Dept. of Physical Sciences\, Indian Institute of Science Education & Research (IISER) \nTip-induced Superconductivity \nIt has been recently observed that certain novel phases of matter\, like superconductivity\, emerge at mesoscopic interfaces between elemental metals and topologically nontrivial systems such as topological insulators and topological Dirac and Weyl semimetals. In this talk\, I will review some of our published results on such mesoscopic superconducting phases with special emphasis on tip-induced superconductivity (TISC). A TISC phase is known to emerge under the point of contact between a sharp tip of a (non-superconducting) normal metal and a material with topologically non-trivial band structure.  Since the superconducting volume fraction in a TISC is extremely small\, traditional bulk characterization tools such as regular transport and magnetization measurements fail to detect such a phase. I will highlight how probing Andreev reflection at such mesoscopic point contacts (a quantum process through which a normal current is converted into a supercurrent in a normal metal-superconductor interface) can be help us detect and understand the fundamental physics of TISC.  \nReferences\n[1]   L.  Aggarwal\, A. Gaurav\, G. S. Thakur\, Z. Haque\, A. K Ganguli and G. Sheet\, Nature materials 15\, 32 (2016).\n[2]   L. Aggarwal\, S. Gayen\, S. Das\, R. Kumar\, V. Süß\, C. Felser\, C. Shekhar and G. Sheet\, Nature Communications 8\, 13974 (2017)\n[3]   S. Das\, L. Aggarwal\, S. Roychowdhury\, M. Aslam\, S. Gayen\, K. Biswas and G. Sheet\, Applied physics Letters 109\, 13 (2016). \nEvent flyer available here
URL:https://uwm.edu/physics/event/physics-colloquium-goutam-sheet/
LOCATION:Lubar Hall S 230\, 3202 N Maryland Ave\, Milwaukee\, WI\, 53211\, United States
CATEGORIES:Physics Colloquia
X-TRIBE-STATUS:
END:VEVENT
END:VCALENDAR