Orbitally Controlled Quantum Hall States in Decoupled Two-Bilayer Graphene Sheets.
Sign Up to like & getrecommendations! Published in 2023 at "Advanced science"
DOI: 10.1002/advs.202300574
Abstract: The authors report on integer and fractional quantum Hall states in a stack of two twisted Bernal bilayer graphene sheets. By exploiting the momentum mismatch in reciprocal space, the single-particle tunneling between both bilayers is… read more here.
Keywords: hall states; graphene sheets; bilayer graphene; hall ... See more keywords
Odd- and even-denominator fractional quantum Hall states in monolayer WSe2
Sign Up to like & getrecommendations! Published in 2020 at "Nature Nanotechnology"
DOI: 10.1038/s41565-020-0685-6
Abstract: Monolayer semiconducting transition-metal dichalcogenides (TMDs) represent a unique class of two-dimensional (2D) electron systems. Their atomically thin structure facilitates gate tunability just like graphene does, but unlike graphene, TMDs have the advantage of a sizable… read more here.
Keywords: quantum; quantum hall; fractional quantum; monolayer wse2 ... See more keywords
Two- and one-dimensional quantum spin Hall states in stanene-functionalized GaTe and InTe matrices
Sign Up to like & getrecommendations! Published in 2019 at "Journal of Materials Chemistry C"
DOI: 10.1039/c9tc01823a
Abstract: The surface and edge electronic structures as well as underlying chemical bonding characteristics in van der Waals topological materials GaSnTe and InSnTe are studied. read more here.
Keywords: spin hall; hall states; two one; one dimensional ... See more keywords
Transport properties of near surface InAs two-dimensional heterostructures
Sign Up to like & getrecommendations! Published in 2018 at "Applied Physics Letters"
DOI: 10.1063/1.5050413
Abstract: Two-dimensional electron systems confined to the surface of narrowband semiconductors have attracted great interest since they can easily integrate with superconductivity (or ferromagnetism) enabling new possibilities in hybrid device architectures and study of exotic states… read more here.
Keywords: quantum hall; two dimensional; orbit coupling; integer quantum ... See more keywords
Nondiagonal anisotropic quantum Hall states
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.103.035142
Abstract: Using the coupled wire construction, the authors investigate a novel Abelian quantum Hall state that possesses a symmetry-enriched topological order given a combination of internal and spatial symmetry. This is termed the ``nondiagonal'' state due… read more here.
Keywords: anisotropic quantum; quantum hall; hall states; nondiagonal anisotropic ... See more keywords
Abelian topological order of ν=2/5 and 3/7 fractional quantum Hall states in lattice models
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.103.075132
Abstract: Determining the statistics of elementary excitations supported by fractional quantum Hall states is crucial to understanding their properties and potential applications. In this paper, we use the topological entanglement entropy as an indicator of Abelian… read more here.
Keywords: quantum hall; fractional quantum; hall states; abelian topological ... See more keywords
Exotic Non-Abelian Topological Defects in Lattice Fractional Quantum Hall States.
Sign Up to like & getrecommendations! Published in 2017 at "Physical review letters"
DOI: 10.1103/physrevlett.119.106801
Abstract: We investigate extrinsic wormholelike twist defects that effectively increase the genus of space in lattice versions of multicomponent fractional quantum Hall systems. Although the original band structure is distorted by these defects, leading to localized… read more here.
Keywords: hall states; quantum hall; fractional quantum; non abelian ... See more keywords
Dirac fermion spectrum of the fractional quantum Hall states
Sign Up to like & getrecommendations! Published in 2023 at "Condensed Matter Physics"
DOI: 10.5488/cmp.26.23703
Abstract: Applying a unified approach, we study the integer quantum Hall effect (IQHE) and fractional quantum Hall effect (FQHE) in the Hofstadter model with short range interactions between fermions. An effective field, that takes into account… read more here.
Keywords: quantum hall; hall states; fine structure; fractional quantum ... See more keywords