Lara Ulčakar (Avtor), Gal Lemut (Avtor), Tomaž Rejec (Avtor), Jernej Mravlje (Avtor)

Povzetek

We study an interacting spinless quadratic band touching model that realizes a topological Mott insulating state. We quench the interaction from a value corresponding to the nematic insulator to that of the quantum anomalous Hall (QAH) ordered phase. We perform time-dependent Hartree-Fock simulations and show that after the quench the system realizes an excited Dirac semimetal state, which is, however, unstable and spontaneously evolves to a state with inhomogeneous nematic and QAH order parameters. The modulations form a stripe pattern that grows exponentially with time until the local Chern marker reaches unity. The alternating QAH order defines a domain structure with boundaries that host chiral sublattice currents.

Ključne besede

fizika kondenzirane snovi;kvantna fizika;kvantni Hallov efekt;topološki fazni prehodi;Mottovi izolatorji;condensed matter physics;quantum physics;quantum Hall effect;topological phase transitions;Mott insulators;

Podatki

Jezik: Angleški jezik
Leto izida:
Tipologija: 1.01 - Izvirni znanstveni članek
Organizacija: UL FMF - Fakulteta za matematiko in fiziko
UDK: 538.9
COBISS: 236717827 Povezava se bo odprla v novem oknu
ISSN: 2469-9950
Št. ogledov: 32
Št. prenosov: 6
Ocena: 0 (0 glasov)
Metapodatki: JSON JSON-RDF JSON-LD TURTLE N-TRIPLES XML RDFA MICRODATA DC-XML DC-RDF RDF

Ostali podatki

Sekundarni jezik: Slovenski jezik
Sekundarne ključne besede: fizika kondenzirane snovi;kvantna fizika;kvantni Hallov efekt;topološki fazni prehodi;Mottovi izolatorji;
Vrsta dela (COBISS): Članek v reviji
Strani: str. 195141-1-195141-11
Letnik: ǂVol. ǂ111
Zvezek: ǂiss. ǂ19
Čas izdaje: 2025
DOI: 10.1103/PhysRevB.111.195141
ID: 26417059