Phase diagram and quantum transport in a semiconductor-superconductor hybrid nanowire with long-range pairing interactions

2021 ◽  
Vol 103 (4) ◽  
Author(s):  
Jun-Tong Ren ◽  
Sha-Sha Ke ◽  
Yong Guo ◽  
Huai-Wu Zhang ◽  
Hai-Feng Lü
Keyword(s):  
Phase Diagram ◽  
Long Range ◽  
Quantum Transport ◽  
Pairing Interactions

scholarly journals Quasi-1D XY antiferromagnet Sr2Ni(SeO3)2Cl2 at Sakai-Takahashi phase diagram

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
E. S. Kozlyakova ◽  
A. V. Moskin ◽  
P. S. Berdonosov ◽  
V. V. Gapontsev ◽  
S. V. Streltsov ◽  
...  
Keyword(s):  
Phase Diagram ◽  
Long Range ◽  
Density Functional ◽  
Uniaxial Anisotropy ◽  
Exchange Interactions ◽  
Spin Liquid ◽  
Functional Theory ◽  
One Dimensional ◽  
Ordered Phases ◽  
Experimental Findings

AbstractUniform quasi-one-dimensional integer spin compounds are of interest as a potential realization of the Haldane conjecture of a gapped spin liquid. This phase, however, has to compete with magnetic anisotropy and long-range ordered phases, the implementation of which depends on the ratio of interchain J′ and intrachain J exchange interactions and both uniaxial D and rhombic E single-ion anisotropies. Strontium nickel selenite chloride, Sr2Ni(SeO3)2Cl2, is a spin-1 chain system which passes through a correlations regime at Tmax ~ 12 K to long-range order at TN = 6 K. Under external magnetic field it experiences the sequence of spin-flop at Bc1 = 9.0 T and spin-flip transitions Bc2 = 23.7 T prior to full saturation at Bsat = 31.0 T. Density functional theory provides values of the main exchange interactions and uniaxial anisotropy which corroborate the experimental findings. The values of J′/J = 0.083 and D/J = 0.357 place this compound into a hitherto unoccupied sector of the Sakai-Takahashi phase diagram.

Thermodynamic properties of a spin-1 model with long-range interactions

2018 ◽  
Vol 32 (05) ◽  
pp. 1850053 ◽  
Author(s):  
Ji-Xuan Hou ◽  
Xu-Chen Yu
Keyword(s):  
Magnetic Field ◽  
Phase Transition ◽  
Phase Diagram ◽  
Long Range ◽  
Order Phase Transition ◽  
First Order ◽  
First Order Phase Transition ◽  
Long Range Interactions ◽  
External Magnetic Field Strength ◽  
First Order Phase

The long-range interacting spin-1 chain placed in a staggered magnetic field is studied by means of microcanonical approach. Firstly, we study the microcanonical entropy of the system in the thermodynamic limit and find the system is non-ergodic and can exhibit either first-order phase transition or second-order phase transition by shifting the external magnetic field strength. Secondly, we construct the global phase diagram of the system and find a phase transition area in the phase diagram corresponding to the temperature jump of the first-order phase transition.

Exploring the dynamics of phase separation in colloid–polymer mixtures with long range attraction

Soft Matter ◽  
2016 ◽  
Vol 12 (24) ◽  
pp. 5325-5333 ◽  
Author(s):  
Juan Sabin ◽  
Arthur E. Bailey ◽  
Barbara J. Frisken
Keyword(s):  
Phase Diagram ◽  
Phase Separation ◽  
Long Range ◽  
Dynamic Scaling ◽  
Polymer Mixtures

Dynamic scaling and growth of structure in colloid–polymer samples spanning the phase diagram depend primarily on the strength of attraction.

scholarly journals Generalized Statistics and the Formation of a Quark-Gluon Plasma

2003 ◽  
Vol 12 (03) ◽  
pp. 395-405 ◽  
Author(s):  
A. M. Teweldeberhan ◽  
H. G. Miller ◽  
R. Tegen
Keyword(s):  
Phase Transition ◽  
Phase Diagram ◽  
Statistical Mechanics ◽  
Long Range ◽  
Quark Gluon Plasma ◽  
Gluon Plasma ◽  
Extensive Form ◽  
Small Deviations ◽  
Long Range Interactions ◽  
Dominant Part

The aim of this paper is to investigate the effect of a non-extensive form of statistical mechanics proposed by Tsallis on the formation of a quark-gluon plasma (QGP). We suggest to account for the effects of the dominant part of the long-range interactions among the constituents in the QGP by a change in the statistics of the system in this phase, and we study the relevance of this statistics for the phase transition. The results show that small deviations (≈ 10%) from Boltzmann–Gibbs statistics in the QGP produce a noticeable change in the phase diagram, which can, in principle, be tested experimentally.

SUPERCONDUCTIVITY AND TYPES OF GAP IN HIGH-Tc CUPRATES

2001 ◽  
Vol 15 (27) ◽  
pp. 3513-3528 ◽  
Author(s):  
FU-SUI LIU ◽  
WAN-FANG CHEN
Keyword(s):  
Phase Diagram ◽  
Long Range ◽  
Phase Coherence ◽  
Xy Model ◽  
Superconducting Gap ◽  
Band Model ◽  
High Tc ◽  
Local Spin ◽  
High Tc Cuprates

This paper extends the two-local-spin-mediated interaction from three- to four-band model, gives two T c formulas using long-range phase coherence condition in quantum and classical XY-models, phase diagram, and types of the gap in Bi 2 Sr 2 CaCu 2 O 8+δ (Bi2212). This paper argues that the superconducting gap and the pseudogap are the same gap just at different temperature regions. This paper also argues that the values of T c versus x should be determined by the long-range phase coherence conditions in the classical and quantum XY-model for underdoped and overdoped regions, respectively.

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