Results 61 to 70 of about 7,151,360 (379)

On the relationship between charge ordering and the Fermi arcs observed in underdoped high superconductors

open access: yesNew Journal of Physics, 2014
We address the origin of the recently discovered close correspondence between the charge ordering wave vectors and the momentum-space separation between the tips of the Fermi arcs seen in angle-resolved photoemission measurements in underdoped high ...
N Harrison, S E Sebastian
doaj   +1 more source

Orbital character and electron correlation effects on two- and three-dimensional Fermi surfaces in KFe2As2 revealed by angle-resolved photoemission spectroscopy

open access: yesFrontiers in Physics, 2014
We have investigated orbital character and electron correlation effects on Fermi surfaces in the hole-overdoped iron pnictide superconductor KFe2As2, which shows a low Tc of ~4 K, by angle-resolved photoemission spectroscopy.
Teppei eYoshida   +14 more
doaj   +1 more source

Discovery of an unconventional charge modulation on the surface of charge-density-wave material TaTe4

open access: yesNew Journal of Physics, 2020
Electronic systems with quasi-one-dimensional (Q1D) Fermi surface tend to form either a charge-density-wave (CDW) or a spin-density-wave ground state at low temperatures due to one-dimensional instabilities.
Haigen Sun   +12 more
doaj   +1 more source

Spectral topology and its relation to Fermi arcs in strongly correlated systems

open access: yesPhysical Review Research, 2023
Fermi gases and liquids display an excitation spectrum that is simply connected, ensuring closed Fermi surfaces. In strongly correlated systems such as the cuprate superconductors, the existence of open sheets of Fermi surface known as Fermi arcs ...
Johan Carlström
doaj   +1 more source

Phenomenological theory of two-dimensional quantum liquids [PDF]

open access: yes, 1996
A phenomenological theory is presented for two-dimensional quantum liquids in terms of the Fermi surface geometry. It is shown that there is a one-to-one correspondence between the properties of an interacting electron system and its corresponding Fermi surface. By doing this, the concept of Fermi surface is generalized to include different topologies.
arxiv   +1 more source

Evidence for a small hole pocket in the Fermi surface of underdoped YBa2Cu3Oy

open access: yes, 2015
The Fermi surface of a metal is the fundamental basis from which its properties can be understood. In underdoped cuprate superconductors, the Fermi surface undergoes a reconstruction that produces a small electron pocket, but whether there is another, as
Badoux, S.   +15 more
core   +1 more source

Orbital-dependent Fermi surface shrinking as a fingerprint of nematicity in FeSe [PDF]

open access: yes, 2016
The large anisotropy in the electronic properties across a structural transition in several correlated systems has been identified as the key manifestation of electronic nematic order, breaking rotational symmetry.
L. Fanfarillo   +8 more
semanticscholar   +1 more source

Holographic Fermi surfaces in charge density wave from D2-D8

open access: yesJournal of High Energy Physics, 2021
D2-D8 model admits a numerical solution that corresponds to a charge density wave and a spin density wave. Considering that as the background, we numerically solve the Dirac equation for probe fermions.
Subir Mukhopadhyay, Nishal Rai
doaj   +1 more source

Helmholtz Fermi surface harmonics: an efficient approach for treating anisotropic problems involving Fermi surface integrals

open access: yesNew Journal of Physics, 2014
We present a new efficient numerical approach for representing anisotropic physical quantities and/or matrix elements defined on the Fermi surface (FS) of metallic materials.
Asier Eiguren, Idoia G Gurtubay
doaj   +1 more source

Entanglement Entropy and the Fermi Surface [PDF]

open access: yesPhysical Review Letters, 2010
4 pages, 2 improved figures added, references ...
openaire   +5 more sources

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