Results 31 to 40 of about 2,919,841 (339)

Chiral phase transitions of helical matter [PDF]

open access: yesPhysical Review D, 2021
We study the thermodynamics of helical matter, namely quark matter in which a net helicity, $n_H$, is in equilibrium. Interactions are modeled by the renormalized quark-meson model with two flavors of quarks. Helical density is described within the grand-canonical ensemble formalism via a chemical potential, $ _H$.
Shen-Song Wan   +2 more
openaire   +4 more sources

Optical anomalous Hall effect enhanced by flat bands in ferromagnetic van der Waals semimetal

open access: yesnpj Quantum Materials, 2022
Geometrical aspects of electronic states in condensed matter have led to the experimental realization of enhanced electromagnetic phenomena, as exemplified by the giant anomalous Hall effect (AHE) in topological semimetals.
Yoshihiro D. Kato   +11 more
doaj   +1 more source

Phase diagram of two-flavor quark matter: Gluonic phase at nonzero temperature [PDF]

open access: yesMod.Phys.Lett.A24:647-658,2009, 2007
The phase structure of neutral two-flavor quark matter at nonzero temperature is studied. Our analysis is performed within the framework of a gauged Nambu--Jona-Lasinio model and the mean-field approximation. We compute the free energy of the gluonic phase (gluonic cylindrical phase II) in a self-consistent manner and investigate the phase transition ...
arxiv   +1 more source

Topological Goldstone phases of matter [PDF]

open access: yesPhysical Review B, 2021
We consider the possibility for phases of matter in which a continuous symmetry is spontaneously broken in a \emph{topologically non-trivial} way, which, roughly, means that the action for the Goldstone modes contains a quantized topological term, and could manifest in, for example, non-trivial quantum numbers of topological defects of the order ...
openaire   +3 more sources

Thermodynamic determination of the equilibrium first-order phase-transition line hidden by hysteresis in a phase diagram

open access: yesScientific Reports, 2023
In some materials exhibiting field-induced first-order transitions (FOTs), the equilibrium phase-transition line is hidden by the hysteresis region associated with the FOT.
Keisuke Matsuura   +6 more
doaj   +1 more source

The half-skyrmion phase in a chiral-quark model [PDF]

open access: yes, 2013
The Chiral Dilaton Model, where baryons arise as non-topological solitons built from the interaction of quarks and chiral mesons, shows in the high density low temperature regime a two phase scenario in the nuclear matter phase diagram.
Sarti, Valentina Mantovani   +1 more
core   +3 more sources

Nonreciprocal charge transport at topological insulator/superconductor interface

open access: yesNature Communications, 2019
The superconducting proximity effect on the surface state of a topological insulator is promising to generate topological superconductivity. Here, Yasuda et al.
Kenji Yasuda   +8 more
doaj   +1 more source

Molecular beam deposition of a new layered pnictide with distorted Sb square nets

open access: yesAPL Materials, 2021
While the family of layered pnictides ABX2 (A—rare or alkaline earth metals, B—transition metals, and X—Sb/Bi) can host Dirac dispersions based on Sb/Bi square nets, nearly half of them have not yet been synthesized for possible combinations of the A and
M. Ohno   +8 more
doaj   +1 more source

Color Ferromagnetic Quark Matter in Neutron Stars [PDF]

open access: yesInt.J.Mod.Phys. A22 (2007) 721-730, 2005
We show that color ferromagnetic phase of quark matter is energetically more favored than color superconducting phases in neutron stars. Namely, increasing baryon density in neutron stars transforms nuclear matter into the quark matter of the color ferromagnetic phase.
arxiv   +1 more source

Mesoscopic Phase Fluctuations: General Phenomenon in Condensed Matter [PDF]

open access: yesInt. J. Mod. Phys. B 17 (2003) 2333-2358, 2003
General conditions for the occurrence of mesoscopic phase fluctuations in condensed matter are considered. The description of different thermodynamic phases, which coexist as a mixture of mesoscopically separated regions, is based on the {\it theory of heterophase fluctuations}. The spaces of states, typical of the related phases, are characterized by {
arxiv   +1 more source

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