Results 61 to 70 of about 15,196,329 (270)
Quasiballistic correction to the density of states in three-dimensional metal
, 1999 We study the exchange correction to the density of states in the three-dimensional metal near the Fermi energy. In the ballistic limit, when the distance to the Fermi level exceeds the inverse transport relaxation time $1/\tau$, we find the correction ...
A. A. Koulakov +8 more
core +1 more source
Fermi-level pinning and charge neutrality level in germanium
Applied Physics Letters, 2006 The Schottky barrier height in metal/Ge contacts shows weak dependence on the metal work function indicating strong Fermi-level pinning close to the Bardeen limit. The pinning factor S is about 0.05 and the charge neutrality level (CNL) is only about 0.09eV above the top of the valence band.
Dimoulas, A. +3 more
openaire +3 more sources
Pairing in ultracold Fermi gases in the lowest Landau level [PDF]
Physical Review A, 2009 We study a rapidly rotating gas of unpolarized spin-1/2 ultracold fermions in the two-dimensional regime when all atoms reside in the lowest Landau level. Due to the presence of the spin degree of freedom both s-wave and p-wave interactions are allowed at ultralow temperatures.
Moller, G., Jolicoeur, Th., Regnault, N.
openaire +5 more sources
Nernst effect and dimensionality in the quantum limit
, 2009 Nernst effect, the transverse voltage generated by a longitudinal thermal gradient in presence of magnetic field has recently emerged as a very sensitive, yet poorly understood, probe of electron organization in solids. Here we report on an experiment on
Behnia, Kamran +4 more
core +1 more source
New Journal of Physics, 2020 Although great achievements have been obtained in metasurfaces so far, the functionalities of these devices are almost static. The dynamically adjustable devices are far less explored.
Xiongjun Shang +6 more
doaj +1 more source
Magnetotransport of dirty-limit van Hove singularity quasiparticles
Communications Physics, 2021 Strongly correlated materials can exhibit deviations from Fermi-liquid behavior partly due to anomalies in the density of states at the Fermi level, such as van Hove singularities.
Yang Xu +15 more
doaj +1 more source
Precise Fermi-level engineering in a topological Weyl semimetal via fast ion implantation [PDF]
arXiv, 2023 The precise controllability of the Fermi level is a critical aspect of quantum materials. For topological Weyl semimetals, there is a pressing need to fine-tune the Fermi level to the Weyl nodes and unlock exotic electronic and optoelectronic effects associated with the divergent Berry curvature.
arxiv
Micromachines, 2021 In this paper, a switchable and dual-tunable terahertz absorber based on patterned graphene and vanadium dioxide is proposed and analyzed. By controlling the Fermi level of graphene and the temperature of vanadium dioxide, the device’s function can be ...
Hongyao Liu +6 more
doaj +1 more source
The Fermi surface of Na$_{x}$CoO$_2$ [PDF]
Phys. Rev. Lett. 93, 236402 (2004), 2004 Doping evolution of the Fermi surface topology of Na$_x$CoO$_2$ is studied systematically. Both local density approximation (LDA) and local spin density approximation (LSDA) predict a large Fermi surface as well as small hole pockets for doping levels $x\sim$ 0.5.
arxiv +1 more source
ACS Applied Materials and Interfaces, 2019 Metal-semiconductor-metal (MSM)-structured GaAs-based nanowire photodetectors have been widely reported due to their promises as an alternative for high-performance devices.
Xue Chen +10 more
semanticscholar +1 more source