BEGIN:VCALENDAR
VERSION:2.0
PRODID:-//CERN//INDICO//EN
BEGIN:VEVENT
SUMMARY:CMSP Seminar (Atomistic Simulation Seminar Series): Tuning Band To
 pology with Pressure: A First-Principles Study
DTSTART;VALUE=DATE-TIME:20260422T090000Z
DTEND;VALUE=DATE-TIME:20260422T093000Z
DTSTAMP;VALUE=DATE-TIME:20260524T033033Z
UID:indico-event-11327@ictp.it
DESCRIPTION:\n	Anita Francis\n	(ICTP)\n\n \n\n	Abstract:\n	Topological in
 sulators are a novel class of materials that are characterized by insulati
 ng bulk states and robust\, symmetry protected metallic surface states [1\
 , 2\, 3]. In this seminar\, I will first introduce the key concepts underl
 ying the topological phases of matter\, ways to characterize them\, and th
 e role of symmetry in their protection. I will then discuss how external p
 arameters like pressure can be used as a clean knob to tune the topologica
 l nature of bands and drive topological phase transitions. As a case study
  I will discuss the recent results on TaSe3\, a quasi-1D material\, where 
 applied pressure induces multiple topological quantum phase transitions [4
 ]. These results highlight the interplay between lattice structure and ban
 d topology\, and demonstrate how pressure can be used to engineer and cont
 rol topological properties in real materials.\n	 \n	References:\n	 \n	[1
 ] J. E. Moore\, “The birth of topological insulators\,” Nature\, vol. 
 464\, pp. 194–198\, Mar 2010.\n	 \n	[2] J. E. Moore and L. Balents\, 
 “Topological invariants of time-reversal-invariant band structures\,” 
 Phys. Rev. B\, vol. 75\, p. 121306\, Mar 2007.\n	 \n	[3] L. Fu\, C. L. Ka
 ne\, and E. J. Mele\, “Topological insulators in three dimensions\,” P
 hys. Rev. Lett.\, vol. 98\, p. 106803\, Mar 2007.\n	 \n	[4] A. G. Francis
 \, J. Sunil\, A. Joseph\, A. Das\, B. Joseph\, K. A. Irshad\, K. Biswas\, 
 S. K. Pati\, and C. Narayana\, “Evolution of topological phases of tase3
  under hydrostatic pressure\,” Phys. Rev. B\, vol. 112\, p. 085115\, Aug
  2025.\n	 \n\n	Zoom registration link:https://zoom.us/meeting/register/fi
 Zgd05VQCCrIGSeEuLvkw\n	 \n\n//indico.ictp.it/event/11327/
LOCATION:Euler Lecture Hall (Leonardo Building) and via Zoom
URL://indico.ictp.it/event/11327/
END:VEVENT
END:VCALENDAR