Landau levels and snake states of pseudo-spin-1 Dirac-like electrons in gapped Lieb lattices

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389005%3A_____%2F23%3A00566554" target="_blank" >RIV/61389005:_____/23:00566554 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1088/1361-648X/ac9e84" target="_blank" >https://doi.org/10.1088/1361-648X/ac9e84</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1361-648X/ac9e84" target="_blank" >10.1088/1361-648X/ac9e84</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Landau levels and snake states of pseudo-spin-1 Dirac-like electrons in gapped Lieb lattices

Popis výsledku v původním jazyce

This work reports the three-band structure associated with a Lieb lattice with arbitrary nearest and next-nearest neighbors hopping interactions. For specific configurations, the system admits a flat band located between two dispersion bands, where three inequivalent Dirac valleys are identified. Furthermore, quasi-particles are effectively described by a spin-1 Dirac-type equation. Under external homogeneous magnetic fields, the Landau levels are exactly determined as the third-order polynomial equation for the energy can be solved using Cardano's formula. It is also shown that an external anti-symmetric field promotes the existence of current-carrying states, so-called snake states, confined at the interface where the external field changes its sign.

Název v anglickém jazyce

Landau levels and snake states of pseudo-spin-1 Dirac-like electrons in gapped Lieb lattices

Popis výsledku anglicky

This work reports the three-band structure associated with a Lieb lattice with arbitrary nearest and next-nearest neighbors hopping interactions. For specific configurations, the system admits a flat band located between two dispersion bands, where three inequivalent Dirac valleys are identified. Furthermore, quasi-particles are effectively described by a spin-1 Dirac-type equation. Under external homogeneous magnetic fields, the Landau levels are exactly determined as the third-order polynomial equation for the energy can be solved using Cardano's formula. It is also shown that an external anti-symmetric field promotes the existence of current-carrying states, so-called snake states, confined at the interface where the external field changes its sign.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10302 - Condensed matter physics (including formerly solid state physics, supercond.)

Projekt

<a href="/cs/project/EF18_053%2F0017163" target="_blank" >EF18_053/0017163: Fyzici v pohybu II</a><br>

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Physics-Condensed Matter

ISSN

0953-8984

e-ISSN

1361-648X

Svazek periodika

35

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

15

Strana od-do

025302

Kód UT WoS článku

000883763400001

EID výsledku v databázi Scopus

2-s2.0-85141894691