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Title: Jaroslav Hamrle: Introduction to topological materials
Number: 38/18
Status: Closing date exceeded
Begin: Čtvrtek, Říjen 18, 2018 at 02:00
Tutor: Václav Holý and Milan Dopita
Location: Lecture room F2, Facutly of Mathematics and Physics, First floor Ke Karlovu 5, Prague 2

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Thursday, 18.10. 2018, 14.00,

Lecture room F2 (1st floor), MFF UK, Ke Karlovu 5

 

Jaroslav Hamrle

Institute of Physics of Charles University, Faculty of Mathematics and Physics, Charles University, Ke Karlovu 5, 121 16 Praha 2, Czech Republic
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Introduction to topological materials

 

The talk introduces to topological materials, defined by presence of Dirac or Weyl nodes, provided by break of the spatial or time symmetry. In those special points of the reciprocal space, the crossing bands does not hybridize due to topological protection. Example of several material is shown. The presence of Weyl nodes in bulk implies topologically protected surface states (called Fermi arcs), where electron spin is connected to electron direction of propagation, providing tool to transfer angular momentum in devices.


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