A two-dimensional Dirac fermion microscope
Sign Up to like & getrecommendations! Published in 2017 at "Nature Communications"
DOI: 10.1038/ncomms15783
Abstract: The electron microscope has been a powerful, highly versatile workhorse in the fields of material and surface science, micro and nanotechnology, biology and geology, for nearly 80 years. The advent of two-dimensional materials opens new… read more here.
Keywords: dimensional dirac; microscope; dirac fermion; two dimensional ... See more keywords
Design of 2D massless Dirac fermion systems and quantum spin Hall insulators based on sp–sp2 carbon sheets
Sign Up to like & getrecommendations! Published in 2018 at "npj Computational Materials"
DOI: 10.1038/s41524-018-0113-8
Abstract: Grapheneis a massless Dirac fermion system, featuring Dirac points in momentum space. It was also first identified as a quantum spin Hall (QSH) insulator when considering spin–orbit coupling (SOC), which opens a band gap at… read more here.
Keywords: carbon; quantum spin; massless dirac; dirac fermion ... See more keywords
Zero-index metamaterials for Dirac fermion in graphene
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.103.085431
Abstract: We study the response of ballistic electron waves in graphene to a square array composed of gate-defined quantum dots when the incident energy is at the neutral point of the Dirac conical dispersion. The effective… read more here.
Keywords: dirac fermion; graphene; zero index; index metamaterials ... See more keywords
Dirac fermion approach and its application to design high Chern numbers in magnetic topological insulator multilayers
Sign Up to like & getrecommendations! Published in 2022 at "Physical Review B"
DOI: 10.1103/physrevb.107.155114
Abstract: Quantum anomalous Hall (QAH) insulators host topologically protected dissipationless chiral edge states, the number of which is determined by its Chern number. Up to now, the QAH state has been realized in a few magnetic… read more here.
Keywords: fermion approach; high chern; chern numbers; magnetic topological ... See more keywords
Nonperturbative emergence of the Dirac fermion in a strongly correlated composite Fermi liquid
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.95.035123
Abstract: The classic composite fermion field theory (Ref. 1) builds up an excellent framework to uniformly study important physical objects and globally explain anomalous experimental phenomena in fractional quantum Hall physics while there are also inherent… read more here.
Keywords: correlated composite; theory; strongly correlated; fermion ... See more keywords
Creation of Half-metallic f -orbital Dirac Fermion with Superlight Elements in Orbital-Designed Molecular Lattice
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.085134
Abstract: Magnetism in solids generally originates from the localized $d$- or $f$-orbitals that are hosted by heavy transition-metal elements. Here, we demonstrate a novel mechanism for designing half-metallic $f$-orbital Dirac fermion from superlight $sp$-elements. Combining first-principles… read more here.
Keywords: half metallic; metallic orbital; fermion superlight; orbital dirac ... See more keywords
Dirac Fermion Hierarchy of Composite Fermi Liquids.
Sign Up to like & getrecommendations! Published in 2019 at "Physical review letters"
DOI: 10.1103/physrevlett.122.257203
Abstract: Composite Fermi liquids (CFLs) are compressible states that can occur for 2D interacting fermions confined in the lowest Landau level at certain Landau level fillings. They have been understood as Fermi seas formed by composite… read more here.
Keywords: dirac fermion; hierarchy composite; composite fermi; fermion hierarchy ... See more keywords
Coexistence of type-II and type-IV Dirac fermions in SrAgBi
Sign Up to like & getrecommendations! Published in 2021 at "Modern Physics Letters B"
DOI: 10.1142/s0217984921501815
Abstract: Relativistic massless Weyl and Dirac fermions have isotropic and linear dispersion relations to maintain Poincaré symmetry, which is the most basic symmetry in high-energy physics. The situation in condensed matter physics is less constrained; only… read more here.
Keywords: dirac fermion; type dirac; physics; dirac fermions ... See more keywords
Effect of Interband Fluctuation on Spin Susceptibility in Molecular Dirac Fermion System α-(BEDT-TTF) 2 I 3
Sign Up to like & getrecommendations! Published in 2017 at "Journal of the Physical Society of Japan"
DOI: 10.7566/jpsj.86.014705
Abstract: The nontrivial properties of interband spin fluctuations are studied by the random phase approximation in a Hubbard model describing the molecular conductor α-(BEDT-TTF)2I3, where wave functions are based on the four sublattices named A, A′,… read more here.
Keywords: susceptibility; interband; bedt ttf; fermion system ... See more keywords
Quantum Phase Transition in Organic Massless Dirac Fermion System α-(BEDT-TTF)2I3 under Pressure
Sign Up to like & getrecommendations! Published in 2020 at "Journal of the Physical Society of Japan"
DOI: 10.7566/jpsj.89.123702
Abstract: We investigate the effect of strong electronic correlation on the massless Dirac fermion system, $\alpha$-(BEDT-TTF)$_2$I$_3$, under pressure. In this organic salt, one can control the electronic correlation by changing pressure and access the quantum critical… read more here.
Keywords: dirac fermion; phase; massless dirac;