BEGIN:VCALENDAR VERSION:2.0 CALSCALE:GREGORIAN PRODID:iCalendar-Ruby BEGIN:VEVENT CATEGORIES:Lectures & Presentations DESCRIPTION:The Nanoscale and Quantum Phenomena Institute Seminar series pr esents Lian Li\, Robert L. Carroll Professor of Physics\, Department of Phy sics and Astronomy\, West Virginia University\, Morgantown\, WV\, on Februa ry 20 at 4:10 p.m. Seminars are held in ***WALTER 135*** and virtually on T eams. Refreshments provided. This week's speaker is hosted by Sergio Ulloa. \n\n \n\nVisualizing symmetry-breaking electronic orders in epitaxial Kagom e antiferromagnet FeSn film\n\n \n\nKagome is a Japanese term referring to a woven bamboo pattern composed of interlaced triangles\, where each lattic e point has four neighboring points. Materials with atoms arranged in this pattern exhibit emergent phenomena resulting from the interplay of frustrat ion\, spin-orbit coupling\, and electron correlations. In this talk\, I wil l present our recent work on the molecular beam epitaxy (MBE) growth and at omic-resolution imaging of symmetry breaking electronic orders in a model K agome antiferromagnet\, FeSn. This material consists of alternating planes of Fe3Sn Kagome and Sn honeycomb lattices\, as confirmed by our in-situ low -temperature scanning tunneling microscopy. On the Fe3Sn Kagome layer\, we observed stripe modulations\, which can be tuned by an in-plane magnetic fi eld\, indicating a nematic electronic order. Furthermore\, we imaged bound states of Sn vacancy defects and observed anomalous magnetic field dependen ce. Under an out-of-plane magnetic field\, the bound states exhibit anomalo us Zeeman shifts\, where their energy shows blue shifts independent of the field direction. Under an in-plane magnetic field\, the energy shift displa ys a two-fold oscillating behavior as a function of the azimuth angle. Thes e results provide insight into the symmetry-breaking electronic orders aris ing from the entangled magnetic and charge degrees of freedom in magnetic K agome materials. DTEND:20250220T220000Z DTSTAMP:20250222T050716Z DTSTART:20250220T211000Z GEO:39.322732;-82.10287 LOCATION:Walter Hall\, 135 SEQUENCE:0 SUMMARY:NQPI Seminar - Lian Li\, West Virginia University UID:tag:localist.com\,2008:EventInstance_48905909691984 URL:https://calendar.ohio.edu/event/nqpi-seminar-lian-li-west-virginia-univ ersity END:VEVENT END:VCALENDAR