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SUMMARY:Hunting Weyl Fermions in microstructured topological semi-metals
DTSTART:20170228T110000
DTEND:20170228T120000
DTSTAMP:20260407T230247Z
UID:e009d687a3a910d654a6207b4b9ce7a28e42aa8ac3fea32030701283
CATEGORIES:Conferences - Seminars
DESCRIPTION:Dr. Philip Moll\, Max Planck Institute for Chemical Physics of
  Solids\, Dresden\nGraphene’s remarkable electronic properties arise fro
 m its peculiar electronic structure that is characterized by a linear disp
 ersion around a band crossing point\, forming the famous two-dimensional 
 “Dirac cones”. In recent years\, three-dimensional semi-metals have be
 en discovered with 3D linear dispersions\, forming the materials class of 
 Weyl- and Dirac-semi-metals. Similarly\, remarkable electronic properties 
 such as the appearance of well-defined electron chirality and novel mechan
 isms leading to large electronic mobilities have been predicted. When cond
 uctors hosting electrons with unusual properties are discovered\, it is na
 tural to ask if they can be used for new types of electronic applications.
 \n\nI will discuss the prospects and recent advances in topological electr
 onics\, which directly exploit the topological character of the electrons 
 in these materials. In particular\, the cyclical conversion of electron ch
 irality induced by strong magnetic fields is evidenced by an oscillatory m
 agnetoresistance akin to Shubnikov-de Haas oscillations. I will present de
 sign concepts for topological electronics elements such as the topological
  voltage inverter\, which are part of the ongoing research in our group.\n
 P.J.W.M et al.\, Nature 535\, 266-270 (2016)\n\nBio:\nDr. Philip Moll rece
 ived his M.Sc. and PhD at ETH Zurich in 2008. His PhD work on the identifi
 cation of the technologically relevant anisotropies of resistivity\, flux 
 flow and critical currents in iron-based superconductors was awarded the E
 TH medal and the ABB award of the Swiss Physical Society. A significant pa
 rt of the thesis concerned the application potential of iron-arsenides in 
 extreme magnetic fields\, which he experimentally explored at the US Natio
 nal High Magnetic Field Laboratory in Tallahassee\, FL\, and Los Alamos\, 
 NM. After graduation\, he joined the quantum materials laboratory of James
  Analytis at UC Berkeley\, where he worked on microfabrication of Dirac se
 mi-metals towards first prototypes of applications. In 2015\, he was award
 ed an independent Max-Planck-Research-Group\, which he established at the 
 MPI for Chemical Physics of Solids in Dresden\, Germany. In the interdisci
 plinary spirit of the institute\, his group “microstructured quantum mat
 ter” works with chemists\, materials scientists and physicists to unders
 tand novel electronic materials on the mesoscale and to assess their poten
 tial for applications.
LOCATION:MED 2 1124 (Coviz2) http://plan.epfl.ch/?lang=fr&room=MED21124
STATUS:CONFIRMED
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