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SUMMARY:Topology: a new twist to electrons in quantum materials - Andrew B
 oothroyd
DTSTART:20241023T101500Z
DTEND:20241023T110000Z
UID:TALK222226@talks.cam.ac.uk
CONTACT:Mads Fonager Hansen
DESCRIPTION:Over the past two decades\, topology has become an increasingl
 y valuable tool in condensed matter research\, providing a radically diffe
 rent way of thinking about materials and enabling the prediction and disco
 very of exotic states with intriguing physical properties. Topological met
 als and semimetals exhibit exceptional transport behaviour due to the exis
 tence of low energy quasiparticles which resemble relativistic fermions. A
  particular interest is to identify materials in which the topology of the
  electrons can be controlled by magnetic order or magnetic fields.  In thi
 s talk\, I will give a general introduction to the field of topological el
 ectronic bands and then discuss how magnetic structures can couple to elec
 tronic band topology\, drawing examples from very recent studies on severa
 l intermetallic compounds\, including candidates for Weyl semimetals and a
 xion insulators. I especially wish to highlight the strengths of scatterin
 g experiments using advanced neutron and synchrotron radiation techniques 
 for probing important aspects of the magnetic structures.
LOCATION:Mott Seminar Room (531)\, Cavendish Laboratory\, Department of Ph
 ysics
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