BEGIN:VCALENDAR VERSION:2.0 METHOD:PUBLISH PRODID:-//Missouri State University/Calendar of Events//EN CALSCALE:GREGORIAN X-WR-TIMEZONE:America/Chicago BEGIN:VTIMEZONE TZID:America/Chicago BEGIN:DAYLIGHT TZOFFSETFROM:-0600 TZOFFSETTO:-0500 DTSTART:20070311T020000 RRULE:FREQ=YEARLY;BYMONTH=3;BYDAY=2SU TZNAME:CDT END:DAYLIGHT BEGIN:STANDARD TZOFFSETFROM:-0500 TZOFFSETTO:-0600 DTSTART:20071104T020000 RRULE:FREQ=YEARLY;BYMONTH=11;BYDAY=1SU TZNAME:CST END:STANDARD END:VTIMEZONE BEGIN:VEVENT UID:56e279fc-8638-4a9f-8c5c-76d9a0230fb8.233970@calendar.missouristate.edu CREATED:20240205T150113Z LAST-MODIFIED:20240205T150113Z LOCATION: SUMMARY:PAMS Seminar: "Van der Waals Topological Magnets and Superconducto rs" by Dr. Dmitry Ovchinnikov DESCRIPTION:Dr. Dmitry OvchinnikovUniversity of KansasDepartment of Physic s and Astronomy\n\n\nAbstract:\n\n\nThe breaking of time-reversal symmetr y in topological insulators leads to novel quantum states of matter. One prominent example at the two-dimensional limit is the Chern insulator\, w hich hosts dissipationless chiral edge states at sample boundaries. These chiral edge modes are perfect one-dimensional conductors whose chirality is defined by the material magnetization and in which backscattering is topologically forbidden. Recently\, van der Waals topological magnet MnBi 2Te4 emerged as a new solid-state platform for studies of the interplay b etween magnetism and topology. I will present an overview of our progress toward controlling topological phase transitions and chiral edge modes i n MnBi2Te4. First\, I will establish how topological properties are intim ately intertwined with magnetic states. I will then demonstrate electrica l control of the number of chiral edge states and the discovery of chiral edge modes along crystalline steps between regions of different thicknes ses and how these modes can be harnessed for the engineering of simple to pological circuits. Finally\, I will discuss the engineering of the super conducting state in topological insulators and demonstrate Pauli paramagn etic limit violation in atomically thin flakes of a topological supercond uctor candidate.\n\n\n\n\n\nZoom seminar: https://missouristate.zoom.us/j /91520721543 X-ALT-DESC;FMTTYPE=text/html:<html><head><title></title></head><body><p><b >Dr.&nbsp\;Dmitry Ovchinnikov</b><br><strong>University of&nbsp\;Kansas</ strong><br><strong>Department of&nbsp\;Physics and Astronomy</strong></p> \n<p>Abstract:</p>\n<p>The breaking of time-reversal symmetry in topologi cal insulators leads to novel quantum states of matter. One prominent exa mple at the two-dimensional limit is the Chern insulator\, which hosts di ssipationless chiral edge states at sample boundaries. These chiral edge modes are perfect one-dimensional conductors whose chirality is defined b y the material magnetization and in which backscattering is topologically forbidden. Recently\, van der Waals topological magnet MnBi2Te4 emerged as a new solid-state platform for studies of the interplay between magnet ism and topology. I will present an overview of our progress toward contr olling topological phase transitions and chiral edge modes in MnBi2Te4. F irst\, I will establish how topological properties are intimately intertw ined with magnetic states. I will then demonstrate electrical control of the number of chiral edge states and the discovery of chiral edge modes a long crystalline steps between regions of different thicknesses and how t hese modes can be harnessed for the engineering of simple topological cir cuits. Finally\, I will discuss the engineering of the superconducting st ate in topological insulators and demonstrate Pauli paramagnetic limit vi olation in atomically thin flakes of a topological superconductor candida te.</p>\n<p></p>\n<p>Zoom seminar:&nbsp\;https://missouristate.zoom.us/j/ 91520721543</p></body></html> DTSTART;TZID=America/Chicago:20240215T160000 DTEND;TZID=America/Chicago:20240215T170000 SEQUENCE:1 URL:https://physics.missouristate.edu/seminars.htm CATEGORIES:Public,Alumni,Current Students,Faculty,Future Students,Staff END:VEVENT END:VCALENDAR