Warning: Use of undefined constant view - assumed 'view' (this will throw an Error in a future version of PHP) in /var/www/www/templates/intibs2020/index.php on line 92

Events



Seminar "Coherence-Correlations-Complexity", Dept. of Theoretical Physics, Wrocław University of Technology

13:15, 19-03-13
Sala 320a bud. A-1, Politechnika Wrocławska

Quantized boundary charges in two-dimensional spin-orbit coupled crystals

Marta Brzezińska

Katedra Fizyki Teoretycznej WPPT PWr

We investigate two-dimensional spinful bulk insulating phases of matter that exhibit boundary charges protected by time-reversal and crystalline symmetries. In order to define the topology, we employ the concept of boundary charge fractionalization and show that charges remain stable as long as symmetries are preserved. We determine bulk topological indices using symmetry indicators and Brillouin zone Wilson loops. By combining tight-binding results with density functional theory calculations, we present material candidates to support our findings.

INSTYTUT NISKICH TEMPERATUR
I BADAŃ STRUKTURALNYCH
im. Włodzimierza Trzebiatowskiego
POLSKIEJ AKADEMII NAUK
Institute address:
ul. Okólna 2, 50-422 Wrocław
Electronic address::
71 343 5021, 71 395 4xxx
Fax: 71 344 1029
Mon - Fri 7:30-15:30