Results 91 to 100 of about 15,030,259 (251)

A possible candidate for triply degenerate point fermions in trigonal layered PtBi2

open access: yesNature Communications, 2018
Triply degenerate point (TP) fermions have been reported in MoP but the TPs are far below the Fermi level. Here, Guo et al. predict and verify the possible existence of TP fermions in trigonal layered PtBi2, where the TP points are close to the Fermi ...
Wenshuai Gao   +10 more
doaj   +1 more source

Ohmic and step noise from a single trapping center hybridized with a Fermi sea

open access: yes, 2005
We show that single electron tunneling devices such as the Cooper-pair box or double quantum dot can be sensitive to the zero-point fluctuation of a single trapping center hybridized with a Fermi sea.
Frank K. Wilhelm   +6 more
core   +1 more source

Graphene-based tunable linear and linear-to-circular polarization converters in the THz band

open access: yesResults in Physics, 2022
A switchable and tunable reflective terahertz (THz) polarization converter based on graphene metamaterial is designed and analyzed. By changing the Fermi energy level of graphene, the converter can achieve broadband linear polarization conversion (LPC ...
Xueguang Yuan   +5 more
doaj  

Spectrum of bound fermion states on vortices in $^3$He-B

open access: yes, 2009
We study subgap spectra of fermions localized within vortex cores in $^3$He-B. We develop an analytical treatment of the low-energy states and consider the characteristic properties of fermion spectra for different types of vortices.
A. K. Geim   +15 more
core   +1 more source

Nature‐inspired 3D hierarchical carbon nanotube matrices enable extraordinary solar steam generation

open access: yesCarbon Energy
Interfacial solar evaporation, which captures solar energy and localizes the absorbed heat for water evaporation, is considered a promising technology for seawater desalination and solar energy conversion.
Chuanshuai Dong   +9 more
doaj   +1 more source

Van Hove singularities in the paramagnetic phase of the Hubbard model: a DMFT study

open access: yes, 2009
Using the dynamical mean-field theory (DMFT) we study the paramagnetic phase of the Hubbard model with the density of states (DOS) corresponding to the three-dimensional cubic lattice and the two-dimensional square lattice, as well as a DOS with inverse ...
E. N. Economou   +3 more
core   +1 more source

Charge transfer complexation boosts molecular conductance through Fermi level pinning

open access: yesChemical Science, 2018
Efficient charge transport across long molecular wires enabled by charge-transfer complexation, through Fermi level pinning of interference features.
Kun Wang   +7 more
semanticscholar   +1 more source

Review: Probing of the Unoccupied Electronic States in Solids by Inverse Photoemission Spectroscopy

open access: yesHittite Journal of Science and Engineering, 2018
This paper reviews the probability of probing the unoccupied electronic states in solids by inverse photoemission spectroscopy IPES . IPES is a surface science technique to analysis the unoccupied electronic states above the Fermi level.
Orhan Zeybek
doaj  

Superlattice Delineated Fermi Surface Nesting and Electron-Phonon Coupling in CaC6

open access: yesCrystals
The superconductivity of CaC6 as a function of pressure and Ca isotopic composition was revisited using DFT calculations on a 2c–double hexagonal superlattice.
Bruce Wang   +3 more
doaj   +1 more source

2k_{F} density wave instability of composite Fermi liquid

open access: yesPhysical Review Research, 2020
We investigate the 2k_{F} density wave instability of non-Fermi-liquid states by combining exact diagonalization with renormalization group analysis. At the half-filled zeroth Landau level, we study the fate of the composite Fermi liquid in the presence ...
Shao-Kai Jian, Zheng Zhu
doaj   +1 more source

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