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Wydarzenia



Seminarium Oddziału Badań Magnetyków

14:00 Wednesday, 13-03-24
sala nr 6 (bud. II)

Topological semimetals and insulators – basics and example of EuIn2As2

prof. dr hab. Tomasz Toliński

Instytut Fizyki Molekularnej PAN w Poznaniu

Magnetic topological insulators and semimetals provide a unique possibility to realize a diversity of topological states depending on the type of magnetic order and the preserved symmetry. Such a versatile system is the single-crystalline EuIn2As2, which exhibits complex magnetic structures below the AFM ordering temperature TN =16.1 K and can be a higher-order topological insulator (HOTI). Moreover, it is characterized by the topological invariant Z4 = 2, which makes it capable of hosting the axion insulator state. Therefore, prior discussing the example of EuIn2As2, a broad overview of the theoretical foundations of the topological matter will be presented. Further, for EuIn2As2 its magnetic phase diagram will be discussed.

INSTYTUT NISKICH TEMPERATUR
I BADAŃ STRUKTURALNYCH
im. Włodzimierza Trzebiatowskiego
POLSKIEJ AKADEMII NAUK
Adres Instytutu:
ul. Okólna 2, 50-422 Wrocław
Adres elektroniczny:
71 343 5021, 71 395 4xxx (xxx nr wew.)
Fax: 71 344 1029
Poniedziałek - piątek w godz. 7:30-15:30