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TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology



Thursday, 28 February 2019
(at 13:00 in room 115, Hallwachsstr. 3)
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Floquet engineering of quantum materials and ultrafast electronics

Dr. Takashi Oka


Max Planck Institute Physics of Complex Systems and Chemical Physics of Solids, Dresden
   






Realizing new quantum states in solid state materials is of fundamental interest. Thanks to recent developments in experimental techniques, Floquet engineering [1], i.e. control of quantum states by time periodical external fields, is becoming a practical way to search new exotic nonequilibrium quantum states. For example, using circularly polarized laser (CPL), it is possible to control the time-reversal symmetry of the materials. By applying CPL to materials such as 2D, 3D Dirac semimetals and Mott insulators, one can transform them into Floquet Chern insulator, Floquet Weyl semimetal [2], and even induce scalar chirality [3]. I will explain the basic theory of Floquet engineering and discuss their possible applications in ultrafast electronics.

Announcement (pdf)


Invited by G. Cuniberti

Within the nanoSeminar

last modified: 2020.12.01 Tue
author: webadmin

contact
Prof. Dr. Gianaurelio Cuniberti
secretariat:
Ms Sylvi Katzarow
phone: +49 (0)351 463-31420
fax: +49 (0)351 463-31422
office.nano@tu-dresden.de
postal address:
Institute for Materials Science
TU Dresden
01062 Dresden, Germany
visitors and courier address:
HAL building
TU Dresden
Hallwachsstr. 3
01069 Dresden, Germany
Max Bergmann Center
TU Dresden
Budapester Str. 27
01069 Dresden, Germany