Dynamic conductivity modified by impurity resonant states in doping three-dimensional Dirac semimetals
Sign Up to like & getrecommendations! Published in 2017 at "Frontiers of Physics"
DOI: 10.1007/s11467-017-0742-2
Abstract: The impurity effect is studied in three-dimensional Dirac semimetals in the framework of a T-matrix method to consider the multiple scattering events of Dirac electrons off impurities. It has been found that a strong impurity… read more here.
Keywords: three dimensional; conductivity; dirac semimetals; impurity ... See more keywords
Qualitative analysis of magnetic waveguides for two-dimensional Dirac fermions
Sign Up to like & getrecommendations! Published in 2018 at "Annals of Physics"
DOI: 10.1016/j.aop.2018.05.021
Abstract: We focus on the confinement of two-dimensional Dirac fermions within the waveguides created by realistic magnetic fields. Understanding of their band structure is of our main concern. We provide easily applicable criteria, mostly depending only… read more here.
Keywords: qualitative analysis; two dimensional; dirac fermions; analysis magnetic ... See more keywords
Statistical properties of the two-dimensional Dirac oscillator with spin–orbit coupling
Sign Up to like & getrecommendations! Published in 2020 at "Annals of Physics"
DOI: 10.1016/j.aop.2020.168328
Abstract: Abstract We investigate the statistical properties of a two-dimensional Dirac oscillator (2D DO) in the presence of a spin–orbit coupling, breaking its supersymmetry. The Hamiltonian of the problem is shown to admit an exact Foldy-Wouthuysen… read more here.
Keywords: spin orbit; dirac oscillator; two dimensional; statistical properties ... See more keywords
Two-dimensional Dirac operators with singular interactions supported on closed curves
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Functional Analysis"
DOI: 10.1016/j.jfa.2020.108700
Abstract: Abstract We study the two-dimensional Dirac operator with a class of interface conditions along a smooth closed curve, which model the so-called electrostatic and Lorentz scalar interactions of constant strengths, and we provide a rigorous… read more here.
Keywords: operators singular; singular interactions; dimensional dirac; dirac operators ... See more keywords
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
Sea of Majorana fermions from pseudo-scalar superconducting order in three dimensional Dirac materials
Sign Up to like & getrecommendations! Published in 2017 at "Scientific Reports"
DOI: 10.1038/s41598-017-07298-2
Abstract: We suggest that spin-singlet pseudo-scalar s-wave superconducting pairing creates a two dimensional sea of Majorana fermions on the surface of three dimensional Dirac superconductors (3DDS). This pseudo-scalar superconducting order parameter Δ5, in competition with scalar… read more here.
Keywords: three dimensional; dirac; sea majorana; majorana fermions ... See more keywords
Electron states in the field of charged impurities in two-dimensional Dirac systems (Review Article)
Sign Up to like & getrecommendations! Published in 2018 at "Low Temperature Physics"
DOI: 10.1063/1.5034149
Abstract: We review the theoretical and experimental results connected with the electron states in two-dimensional Dirac systems paying a special attention to the atomic collapse in graphene. Two-electron bound states of a Coulomb impurity are considered… read more here.
Keywords: field; charged impurities; electron states; two dimensional ... See more keywords
Prediction of negative refraction in Dirac semimetal metamaterial
Sign Up to like & getrecommendations! Published in 2022 at "Nanotechnology"
DOI: 10.1088/1361-6528/ac7ded
Abstract: Negative refraction materials are indispensable building blocks in the optoelectric devices for their unique functionalities of controlling the light propagations, such as, superlens and transformation optics. However, material realizations of negative refraction are still limited… read more here.
Keywords: refraction; three dimensional; negative refraction; dirac ... See more keywords
Optical valleytronics of impurity states in two-dimensional Dirac materials
Sign Up to like & getrecommendations! Published in 2021 at "Physical Review B"
DOI: 10.1103/physrevb.103.l161301
Abstract: We analyze the valley selection rules for optical transitions from impurity states to the conduction band in two-dimensional Dirac materials, taking a monolayer of MoS2 as an example. We employ the analytical model of a… read more here.
Keywords: impurity states; dimensional dirac; dirac materials; impurity ... See more keywords
Modifications of the Lifshitz-Kosevich formula in two-dimensional Dirac systems
Sign Up to like & getrecommendations! Published in 2017 at "Physical Review B"
DOI: 10.1103/physrevb.96.205410
Abstract: Starting from the Luttinger-Ward functional [J. M. Luttinger and J. C. Ward, Phys. Rev. 118, 1417 (1960)] we derive an expression for the oscillatory part of the grand potential of a two-dimensional Dirac system in… read more here.
Keywords: kosevich formula; two dimensional; lifshitz kosevich; electron ... See more keywords
Two-dimensional Dirac fermions in thin films of Cd3As2
Sign Up to like & getrecommendations! Published in 2018 at "Physical Review B"
DOI: 10.1103/physrevb.97.115132
Abstract: Three-dimensional topological Dirac semimetals are a new state of matter. The authors report on experiments that directly access the electronic structure of two-dimensional states in the prototype topological Dirac semimetal Cd${}_{3}$As${}_{2}$. By modulating the carrier… read more here.
Keywords: fermions thin; thin films; dirac; two dimensional ... See more keywords