Results 41 to 50 of about 6,781,577 (346)
Pressure-induced Anderson-Mott transition in elemental tellurium
Communications Materials, 2021 Elemental tellurium is a natural p-type semiconductor with a chiral structure and spin-polarized Fermi surface. Here, the authors show that the pressure-induced topological change of the Fermi surface at 17 kbar triggers an Anderson-Mott insulator-to ...
Jaime F. Oliveira +6 more
doaj +1 more source
New Journal of Physics, 2015 A three-orbital itinerant-electron model involving d _xz , d _yz and d _xy Fe 3d orbitals is proposed for iron pnictides towards understanding the ( $\pi ,0$ ) ordered magnetism and magnetic excitations in these materials.
Sayandip Ghosh, Avinash Singh
doaj +1 more source
New 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
Effective mass and Fermi surface complexity factor from ab initio band structure calculations
npj Computational Materials, 2017 The effective mass is a convenient descriptor of the electronic band structure used to characterize the density of states and electron transport based on a free electron model.
Z. M. Gibbs +9 more
semanticscholar +1 more source
Pseudogap and Fermi surface topology in the two-dimensional Hubbard model. [PDF]
, 2017 One of the distinctive features of hole-doped cuprate superconductors is the onset of a `pseudogap' below a temperature $T^*$. Recent experiments suggest that there may be a connection between the existence of the pseudogap and the topology of the Fermi ...
Wéi Wú +5 more
semanticscholar +1 more source
Fermi Surface of Sr_{2}RuO_{4}: Spin-Orbit and Anisotropic Coulomb Interaction Effects. [PDF]
Physical Review Letters, 2016 The topology of the Fermi surface of Sr_{2}RuO_{4} is well described by local-density approximation calculations with spin-orbit interaction, but the relative size of its different sheets is not.
Guoren Zhang +3 more
semanticscholar +1 more source
Frontiers 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
New 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
Physical 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
Orbital-dependent Fermi surface shrinking as a fingerprint of nematicity in FeSe [PDF]
, 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