Results 101 to 110 of about 15,196,329 (270)

Fermi Statistics of Partially Populated States [PDF]

open access: yesarXiv, 2013
Fermi statistics is formally extended to the case when energy levels are allowed to be partially occupied, which the Pauli principle does not categorically exclude. The partial Fermi distribution obtained depends on the partial occupation of states but otherwise has similar properties as the (integer) Fermi distribution.
arxiv  

Realizing tunable Fermi level in SnTe by defect control [PDF]

open access: yesJ. Phys.: Condens. Matter 37 145501 (2025)
The tuning of the Fermi level in tin telluride, a topological crystalline insulator, is essential for accessing its unique surface states and optimizing its electronic properties for applications such as spintronics and quantum computing. In this study, we demonstrate that the Fermi level in tin telluride can be effectively modulated by controlling the
arxiv   +1 more source

Fermi-level-dependent charge-to-spin current conversion by Dirac surface states of topological insulators [PDF]

open access: yesNature Physics, 2015
The spin–momentum locking of Dirac surface states offers intriguing possibilities for converting between charge and spin currents. Experiments show that fine tuning of the Fermi level is critical for maximizing the efficiency of such conversions.
K. Kondou   +12 more
semanticscholar   +1 more source

Electronic structure of CaFe2As2

open access: yes, 2013
We investigate the electronic structure of CaFe$_2$As$_2$ using high resolution photoemission spectroscopy. Experimental results exhibit three energy bands crossing the Fermi level making hole pockets around the $\Gamma$-point.
Adhikary, G.   +7 more
core   +1 more source

Mechanism of Change in The Emission and Optical Properties of W and Mo After Bombardment with Low-Energy Ions

open access: yesEast European Journal of Physics
The paper reports the results of study of composition, emission, and optical properties of polycrystalline W and Mo samples implanted with Ba+ ions and coated with submonolayer Ba atoms by applying Auger electron spectroscopy, secondary electron emission
D.А. Tashmukhamedova   +4 more
doaj   +1 more source

Coherent quasi-particles-to-incoherent hole-carriers crossover in underdoped cuprates

open access: yes, 2009
In underdoped cuprates, only a portion of the Fermi surface survives as Fermi arcs due to pseudogap opening. In hole-doped La$_{2}$CuO$_4$, we have deduced the "coherence temperature" $T_{coh}$ of quasi-particles on the Fermi arc above which the ...
A. Fujimori   +13 more
core   +1 more source

Effects of Pressure on the Electronic Structures of LaOFeP

open access: yes, 2013
We studied the electronic structures of LaOFeP under applied pressure using first-principles calculations. The electronic density of states at the Fermi level decreases continuously with increasing pressure.
Hu, Xiao, Yang, Yong
core   +1 more source

Berry phase of the composite-fermion Fermi Sea: Effect of Landau-level mixing

open access: yes, 2018
We construct explicit lowest-Landau-level wave functions for the composite-fermion Fermi sea and its low energy excitations following a recently developed approach [Pu, Wu and Jain, Phys. Rev. B 96, 195302 (2018)] and demonstrate them to be very accurate
Fremling, Mikael   +2 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  

Interlayer coherent composite Fermi liquid in Half-filled Landau Level bilayers, a window toward the hidden $π$ Berry phase [PDF]

open access: yesarXiv, 2017
For interacting 2D electrons in the presence of magnetic field at half filling, the system forms a `composite Fermi liquid(CFL)' with emergent Fermi surface and exhibits metallic behavior, based on the standard Halperin, Lee, and Read(HLR) field theory.
arxiv  

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