Results 91 to 100 of about 15,196,329 (270)
Terahertz Multiple Beam Steering Using Graphene Pancharatnam-Berry Metasurfaces
IEEE Photonics Journal, 2022 Pancharatnam-Berry metasurfaces have the great advantage of manipulating electromagnetic wave. At the same time, graphene has attracted much attention due to its unique electromagnetic responses in different Fermi levels.
Feng Zhao, Jiashuai Xu, Zhengyong Song
doaj +1 more source
IEEE Photonics JournalTwo-dimensional photodetectors have an important property that can improve the optical effect by adjusting the Fermi level, and have outstanding development prospects in the field of visible-infrared photoelectric detection.
Jiapeng Zhen +6 more
doaj +1 more source
Rich nature of Van Hove singularities in Kagome superconductor CsV3Sb5
Nature Communications, 2022 Predictions suggest enhanced correlation effect due to multiple van Hove singularities (VHS) in the vicinity of the Fermi level in the recently discovered AV3Sb5 kagome metals.
Yong Hu +11 more
doaj +1 more source
Fermi level shift in carbon nanotubes by dye confinement [PDF]
Carbon, 2019 Abstract Dye confinement into carbon nanotube significantly affects the electronic charge density distribution of the final hybrid system. Using the electron-phonon coupling sensitivity of the Raman G-band, we quantify experimentally how charge transfer from thiophene oligomers to single walled carbon nanotube is modulated by the diameter of the nano-
Y. Almadori +19 more
openaire +5 more sources
, 2012 One of the most successful theories of a non-Fermi liquid metallic state is the composite Fermi liquid (CFL) theory of the half-filled Landau level. In this paper, we study continuous quantum phase transitions out of the CFL state and into a Landau Fermi
Barkeshli, Maissam, McGreevy, John
core +1 more source
Attachment of Surface "Fermi Arcs" to the Bulk Fermi Surface: "Fermi-Level Plumbing" in Topological Metals [PDF]
arXiv, 2014 The role of "Fermi arc" surface-quasiparticle states in "topological metals" (where some Fermi surface sheets have non-zero Chern number) is examined. They act as "Fermi-level plumbing" conduits that transfer quasiparticles among groups of apparently-disconnected Fermi sheets with non-zero Chern numbers to maintain equality of their chemical potentials,
arxiv
The Fermi surface of underdoped high-T_c superconducting cuprates
, 1997 The coexistence of $\pi$-flux state and d-wave RVB state is considered in this paper within the slave boson approach. A critical value of doping concentration $\delta_c$ is found, below which the coexisting $\pi$-flux and d-wave RVB state is favored in ...
Ding +8 more
core +1 more source
Isolated zeros destroy Fermi surface in holographic models with a lattice
Journal of High Energy Physics, 2020 We study the fermionic spectral density in a strongly correlated quantum system described by a gravity dual. In the presence of periodically modulated chemical potential, which models the effect of the ionic lattice, we explore the shapes of the ...
Floris Balm +4 more
doaj +1 more source
, 1999 At any metal-carbon nanotube interface there is charge transfer and the induced interfacial field determines the position of the carbon nanotube band structure relative to the metal Fermi-level.
A. Rubio +34 more
core +1 more source
Instabilities in One-Dimensional Two-Component Atomic Fermi Gas with Two-Level Impurities [PDF]
arXiv, 2005 In the present paper one-dimensional two-component atomic Fermi gas is considered in long-wave limit as a Luttinger liquid. The mechanisms leading to instability of the non-Fermi-liquid state of a Luttinger liquid with two-level impurities are proposed.
arxiv