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The melting of the Abrikosov vortex lattice in a 2D type-II superconductor at high magnetic fields is studied analytically within the framework of the phenomenological Ginzburg-Landau theory. It is shown that local phase fluctuations in the…

超导电性 · 物理学 2016-08-31 V. Zhuravlev , T. Maniv

YBa$_2$Cu$_3$O$_7$ (YBCO) exhibits a large anisotropy between the $a$ and $b$ axes in the CuO$_2$ planes because of the presence of CuO chains. In order to account for such an anisotropy we develop a Ginzburg-Landau (GL) theory for an…

凝聚态物理 · 物理学 2007-05-23 Ji-Hai Xu , Yong Ren , C. S. Ting

To examine the field dependence of the vortex lattice melting transition in two-dimensional (2D) superconductors, Monte Carlo simulations of the 2D Ginzburg-Landau (GL) model are performed by extending the conventional lowest Landau level…

超导电性 · 物理学 2015-05-27 Taro Saiki , Ryusuke Ikeda

Superconductivity was observed in certain range of pressure and chemical composition in Weyl semi-metals of both the type I and type II (when the Dirac cone tilt parameter $\kappa >1$). Magnetic properties of these superconductors are…

超导电性 · 物理学 2018-04-18 Baruch Rosenstein , B. Ya. Shapiro , Dingping Li , I. Shapiro

We theoretically analyze the non-linear anomalous Nernst effect as the second-order response of temperature gradient by using the semiclassical framework of electron dynamics. We find that a non-linear current can be generated transverse to…

介观与纳米尺度物理 · 物理学 2019-05-29 Xiao-Qin Yu , Zhen-Gang Zhu , Jhih-Shih You , Tony Low , Gang Su

Formulated in [Low Temperature Physics/Fizika Nizkikh Temperatur, 41, 482 (2015)] model of hypothetical superconductivity with the source term (external pair potential) in BCS hamiltonian is generalized for a case if electrons interacts via…

超导电性 · 物理学 2015-06-30 Konstantin V. Grigorishin

An interpretation of the quadratic parameter of the Ginzburg-Landau theory of superconductivity is presented in this paper. The negative term in the potential, which allows the spontaneous symmetry breaking, is interpreted as a direct…

超导电性 · 物理学 2014-07-15 Miguel C. N. Fiolhais , Joseph L. Birman

We study a model for the transverse thermoelectric response due to quantum superconducting fluctuations in a two-leg Josephson ladder, subject to a perpendicular magnetic field B and a transverse temperature gradient. The off-diagonal…

超导电性 · 物理学 2015-06-11 Yeshayahu Atzmon , Efrat Shimshoni

A hydrodynamical description for vortex states in type II superconductors is presented based on the time-dependent Ginzburg-Landau equation (TDGL). In contrast to the familiar extension of a single vortex dynamics based on the force…

凝聚态物理 · 物理学 2009-10-28 Ryusuke Ikeda

Longitudinal and transverse voltages have been measured in zero external magnetic fields. In close vicinity of the superconducting transition nonzero transverse voltage has been observed while far away from Tc, both above and below no such…

超导电性 · 物理学 2009-11-07 P. Vasek

A two-dimensional topologically nontrivial state of noninteracting electrons, such as the surface state of a three-dimensional topological insulator, is predicted to realize a topological superconductor when proximity-coupled to an ordinary…

强关联电子 · 物理学 2025-10-07 Koji Kudo , Ryota Nakai , Hiroki Isobe , J. K. Jain , Kentaro Nomura

The electrostatic potential above the Abrikosov vortex lattice, discussed earlier by Blatter {\em et al.} {[}PRL {\bf 77}, 566 (1996){]}, is evaluated within the Ginzburg-Landau theory. Unlike previous studies we include the surface dipole.…

We study the superconducting properties of a two-dimensional superconductor in the proximity to an electronic topological transition (ETT). In contrast to the 3D case, we find that the superconducting gap at T=0, the critical temperature…

超导电性 · 物理学 2007-05-23 G. G. N. Angilella , E. Piegari , A. A. Varlamov

The phase transition of the electroweak vacuum induced by a strong magnetic field is examined, and a connection is made with the Ginzburg-Landau theory of type-II superconductivity. For solutions of the exact nonlinear field equations of…

高能物理 - 唯象学 · 物理学 2007-05-23 Ola Tornkvist

We study the properties of $s$-wave superconductivity induced around a nematic quantum critical point in two-dimensional metals. The strong Landau damping and the Cooper pairing between incoherent fermions have dramatic mutual influence on…

超导电性 · 物理学 2017-12-07 Guo-Zhu Liu , Jing-Rong Wang

In this paper we study the Ginzburg-Landau (GL) equation for Fermi liquid superconductors with strong Landau interactions $F_0$ and $F_1$. We show that Landau interactions renormalize two parameters entering the GL equation leading to…

超导电性 · 物理学 2015-06-25 Tai-Kai Ng , Wai-Tak Tse

By investigating the nonequilibrium transport across a metal/superconductor junction in both nonrelativistic and relativistic cases, we reveal that the asymmetric Andreev reflection with anisotropic superconductors is able to induce the…

介观与纳米尺度物理 · 物理学 2014-03-03 Jie Ren , Jian-Xin Zhu

We use linear response theory to study the transverse force generated by an external electric field and hence possible charge Hall effect in spin-orbit coupled systems. In addition to the Lorentz force that is parallel to the electric…

介观与纳米尺度物理 · 物理学 2015-05-14 Tsung-Wei Chen , Hsiu-Chuan Hsu , Guang-Yu Guo

A liquid of superconducting vortices generates a transverse thermoelectric response. This Nernst signal has a tail deep in the normal state due to superconducting fluctuations. Here, we present a study of the Nernst effect in…

We consider an electron model of superconductivity on a three-dimensional lattice where there are on-site attractive Hubbard interaction and long-range repulsive Coulomb interaction. It is claimed that fully gapped $s$-wave…

超导电性 · 物理学 2022-03-24 Yasuhiro Tada