Results 31 to 40 of about 7,189,276 (273)
Fermi Surface Reconstruction without Symmetry Breaking
Physical Review X, 2020 We present a sign-problem-free quantum Monte Carlo study of a model that exhibits quantum phase transitions without symmetry breaking and associated changes in the size of the Fermi surface.
Snir Gazit +2 more
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Asymptotic Pomeranchuk instability of Fermi liquids in half-filled Landau levels
Scientific Reports, 2023 We present a theory of spontaneous Fermi surface deformations for half-filled Landau levels (filling factors of the form $$\nu =2 \, n+1/2$$ ν = 2 n + 1 / 2 ).
Jorge Quintanilla, Orion Ciftja
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Soft Fermi Surfaces and Breakdown of Fermi-Liquid Behavior [PDF]
Physical Review Letters, 2003 12 pages, 2 figures, revised version as ...
Metzner, W., Rohe, D., Andergassen, S.
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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
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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
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Infinite critical boson non-Fermi liquid
npj Quantum Materials, 2023 We study a distinct type of non-Fermi liquid where there exists an infinite number of critical bosonic modes instead of finite number of bosonic modes for the conventional ones. We consider itinerant magnets with both conduction electrons and fluctuating
Xiao-Tian Zhang, Gang Chen
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Generalized fermi derivative on the hypersurfaces
MANAS: Journal of Engineering, 2022 In this paper, generalized Fermi derivative, generalized Fermi parallelism, and generalized non-rotating frame concepts are given along any curve on any hypersurface in Eⁿ⁺¹ Euclidean space.
Ayşenur Uçar, Fatma Karakuş
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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
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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
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Topological semimetals carrying arbitrary Hopf numbers: Fermi surface topologies of a Hopf link, Solomon's knot, trefoil knot, and other linked nodal varieties [PDF]
, 2017 We propose a type of Hopf semimetal indexed by a pair of numbers $(p,q)$, where the Hopf number is given by $pq$. The Fermi surface is given by a preimage of the Hopf map, which consists of loops nontrivially linked for a nonzero Hopf number.
M. Ezawa
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