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Related papers: Vortex structure in chiral p-wave superconductors

200 papers

The elementary vortex pinning potential is studied in unconventional superconductors within the framework of the quasiclassical theory of superconductivity. Numerical results are presented for d-, anisotropic s-, and isotropic s-wave…

Superconductivity · Physics 2009-11-07 Nobuhiko Hayashi , Yusuke Kato

We investigate charge densities around the vortex cores of an s-wave and a chiral p-wave superconductor (SC) in two dimension within quasiclassical theory. We consider contributions of particle-hole asymmetry through gradient expansions in…

Superconductivity · Physics 2019-02-27 Yusuke Masaki

On the basis of the Bogoliubov--de Gennes theory we study the transformation of the quasiparticle spectrum in the mixed state of a mesoscopic superconductor, governed by an external magnetic field. We analyze the low energy part of the…

Superconductivity · Physics 2008-07-14 A. S. Mel'nikov , D. A. Ryzhov , M. A. Silaev

We investigate several important properties of multi-band superconductors. They are time-reversal symmetry breaking, chirality and fractional quantum flux vortices in three-band superconductors. The BCS (Bardeen-Cooper-Schrieffer) gap…

Superconductivity · Physics 2015-06-04 Takashi Yanagisawa , Yasumoto Tanaka , Izumi Hase , Kunihiko Yamaji

In the recent work by Song et al. [Science 332, 1410 (2011)], the scanning tunneling spectroscopy experiment in the stoichiometric FeSe reveals evidence for nodal superconductivity and strong anisotropy. The nodal structure can be explained…

Superconductivity · Physics 2012-04-27 Hsiang-Hsuan Hung , Can-Li Song , Xi Chen , Xucun Ma , Qi-kun Xue , Congjun Wu

Pair density waves (PDWs) are a inhomogeneous superconducting states whose Cooper pairs possess a finite momentum resulting in a oscillatory gap in space, even in the absence of an external magnetic field. There is growing evidence for the…

Superconductivity · Physics 2024-12-17 Marcus Rosales , Eduardo Fradkin

The vortices of two-dimensional chiral $p$-wave superconductors are predicted to exhibit some exotic behaviors; one of their curious features is the existence of two types of vortices (each vortex has vorticity either parallel or…

Superconductivity · Physics 2015-10-23 Noriyuki Kurosawa , Nobuhiko Hayashi , Yusuke Kato

The vortex core structure in a d-wave superconductor is analyzed on the basis of the quasi-classical Eilenberger theory beyond the Ginzburg-Landau framework. The current and magnetic field distributions around an isolated vortex break…

Condensed Matter · Physics 2009-10-28 M. Ichioka , N. Hayashi , N. Enomoto , K. Machida

The microscopic properties of a single vortex in a dilute superfluid Fermi gas at zero temperature are examined within the framework of self-consistent Bogoliubov-de Gennes theory. Using only physical parameters as input, we study the pair…

Soft Condensed Matter · Physics 2007-05-23 N. Nygaard , G. M. Bruun , C. W. Clark , D. L. Feder

Vortex structure of pure $d_{x^2-y^2}$-wave superconductors is microscopically analyzed in the framework of the quasi-classical Eilenberger equations. Selfconsistent solution for the $d$-wave pair potential is obtained for the first time in…

supr-con · Physics 2009-10-28 M. Ichioka , N. Hayashi , N. Enomoto , K. Machida

We investigate the superconducting states that arise as a consequence of mesoscopic confinement and a multi-component order parameter in the Ginzburg-Landau model for $p\,$-wave superconductivity. Conventional vortices, but also…

Superconductivity · Physics 2016-02-03 V. Fernández Becerra , E. Sardella , F. M. Peeters , M. V. Milošević

Based on a two dimensional odd-parity superconducting order parameter for Sr_2RuO_4 with p-wave symmetry, we investigate the single vortex and vortex lattice structure of the mixed phase near H_{c1}. Ginzburg-Landau calculations for a…

Superconductivity · Physics 2009-10-31 R. Heeb , D. F. Agterberg

A magnetic field applied to type-II superconductors introduces quantized vortices that locally quench superconductivity, providing a unique opportunity to investigate electronic orders that may compete with superconductivity. This is…

Superconductivity · Physics 2016-06-01 T. Machida , Y. Kohsaka , K. Matsuoka , K. Iwaya , T. Hanaguri , T. Tamegai

Based on the quasiclassical theory, we investigate the vortex state in a two-band superconductor with a small gap on a three dimensional Fermi surface and a large gap on a quasi-two dimensional one, as in MgB_2. The field dependence of…

Superconductivity · Physics 2007-08-01 Masanori Ichioka , Kazushige Machida , Noriyuki Nakai , Predrag Miranovic

In this paper, the px+ipy topological superconductor with vortex superlattice is studied. We found that there exist mid-gap energy bands induced by the vortex superlattice and the mid-gap energy bands have nontrivial topological properties…

Superconductivity · Physics 2015-06-18 Jiang Zhou , Shi-Zhu Wang , Ya-Jie Wu , Rong-Wu Li , Su-Peng Kou

Majorana quasiparticles localized in vortex cores of a chiral p-wave superconductor hybridize with one another to form bands in a vortex lattice. We begin by solving a fully microscopic theory describing all quasiparticle bands in a chiral…

Superconductivity · Physics 2015-10-28 James M. Murray , Oskar Vafek

Using a string inspired model we construct gravity duals generalizing px and p_x + ip_y superconductors. Introducing a Chern-Simons coupling in the gravity side we demonstrate the ability to control which phase dominates at low…

High Energy Physics - Theory · Physics 2013-05-30 Leopoldo A. Pando Zayas , Dori Reichmann

Using the holographic gauge-gravity duality, we find a solution for an isolated vortex and a vortex lattice in a 2+1 dimensional p-wave superconductor, which is described by the boundary theory dual to an SU(2) gauge theory in 3+1…

High Energy Physics - Theory · Physics 2011-07-08 James M. Murray , Zlatko Tesanovic

Based on a two-orbital model and taking into account the presence of the impurity, we studied theoretically the electronic structure in the vortex core of the iron-Pnictide superconducting materials. The vortex is pinned when the impurity…

Superconductivity · Physics 2011-12-01 Tao Zhou , Z. D. Wang , Yi Gao , C. S. Ting

Based on an effective Hamiltonian specified in the triangular lattice with possible $p_x\pm ip_y$- or $d_{x^2-y^2}\pm id_{xy}$-wave pairing, which has close relevance to the newly discovered Na$_{0.35}$CoO$_2$$\cdot y$H$_2$O, the electronic…

Superconductivity · Physics 2009-11-10 Qiang Han , Z. D. Wang , Q. -H. Wang , Tianlong Xia