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Related papers: Fulde-Ferrell-Larkin-Ovchinnikov state in d-wave s…

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Motivated by recent experiments in low-dimensional trapped fermionic superfluids, we study a quasi-one-dimensional (quasi-1D) superfluid with a population imbalance between two hyperfine states using an exact mean-field solution for the…

Superconductivity · Physics 2011-09-30 Roman M. Lutchyn , Maxim Dzero , Victor M. Yakovenko

We show that triplet pairing correlations are generated in purely s-waves superfluids whenever population imbalance enforces anisotropic Fulde-Ferrell (FF) or inhomogeneous Larkin-Ovchinikov (LO) states. The same set of quasiparticle states…

Quantum Gases · Physics 2012-11-26 I. Zapata , F. Sols , E. Demler

We study an effect of rotation on the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state of two component Fermi superfluid gases in a toroidal trap. We investigate a stability of the FFLO states in the quasi-one-dimensional regime on the basis…

Quantum Gases · Physics 2015-06-03 Tomohiro Yoshida , Youichi Yanase

We present resistivity and thermal-conductivity measurements of superconducting FeSe in intense magnetic fields up to 35 T applied parallel to the $ab$ plane. At low temperatures, the upper critical field $\mu_0 H_{c2}^{ab}$ shows an…

We theoretically study the orbital destructive effect against superconductivity in a parallel magnetic field in the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO or LOFF) phase at zero temperature in a quasi-two-dimensional (Q2D) conductor. We…

Superconductivity · Physics 2018-05-16 Andrei G. Lebed

We report upper critical field measurements in the metal-free-all-organic superconductor $\beta''$-(ET)$_{2}$SF$_{5}$CH$_{2}$CF$_{2}$SO$_{3}$ obtained from measuring the in-plane penetration depth using the tunnel diode oscillator…

Superconductivity · Physics 2009-06-19 K. Cho , B. E. Smith , W. A. Coniglio , L. E. Winter , C. C. Agosta , J. A. Schlueter

We propose that in a system with pocket Fermi surfaces, a pairing state with a finite total momentum q_tot like the Fulde-Ferrell-Larkin-Ovchinnikov state can be stabilized even without a magnetic field. When a pair is composed of electrons…

Superconductivity · Physics 2009-08-11 Katsunori Kubo

The Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) states, characterized by Cooper pairs condensed at finite-momentum are, at the same time, exotic and elusive. It is partially due to the fact that the FFLO states allow superconductivity to…

Quantum Gases · Physics 2020-08-25 Heron Caldas , Qijin Chen

It is theoretically shown that, in the four-fold symmetric d-wave superconducting phase, a paramagnetic pair-breaking (PPB) enhanced sufficiently by increasing the applied magnetic field induces not only the Fulde-Ferrell-Larkin-Ovchinnikov…

Superconductivity · Physics 2015-05-27 Yuhki Hatakeyama , Ryusuke Ikeda

By analyzing vortex lattices, re-entrant Cooper pairing and Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) states in a single theoretical framework we explore how vortices and spin textures join to protect superconductivity against large magnetic…

Superconductivity · Physics 2013-05-29 Predrag Nikolic

We study attractively interacting spin-1/2 fermions on the square lattice subject to a spin population imbalance. Using unbiased diagrammatic Monte Carlo simulations we find an extended region in the parameter space where the Fermi liquid…

Superconductivity · Physics 2016-09-07 Jan Gukelberger , Sebastian Lienert , Evgeny Kozik , Lode Pollet , Matthias Troyer

We present magnetic-torque measurements of the organic superconductor k-(BEDT-TTF)2Cu(NCS)2 for in-plane magnetic fields up to 32 T. In this layered two-dimensional compound the superconductivity can persist even in fields above the Pauli…

Superconductivity · Physics 2015-05-19 B. Bergk , A. Demuer , I. Sheikin , Y. Wang , J. Wosnitza , Y. Nakazawa , R. Lortz

Within the renormalization group framework we study the stability of superfluid density wave states, known as Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phases, with respect to thermal order-parameter fluctuations in two and three-dimensional…

Quantum Gases · Physics 2017-09-06 Pawel Jakubczyk

An experimental phase diagram of the field-induced superconductivity in the lambda-(BETS)_2FeCl_4 compound is theoretically reproduced by a combination of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state and the Jaccarino-Peter mechanism.…

Superconductivity · Physics 2009-11-07 Hiroshi Shimahara

Spin-polarized attractive Fermi gases in one-dimensional (1D) optical lattices are expected to be remarkably good candidates for the observation of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phase. We model these systems with an attractive…

Strongly Correlated Electrons · Physics 2008-06-05 M. Rizzi , Marco Polini , M. A. Cazalilla , M. R. Bakhtiari , M. P. Tosi , Rosario Fazio

The properties of a quasi-one-dimensional (quasi-1D) superconductor with {\it an open Fermi surface} are expected to be unusual in a magnetic field. On the one hand, the quasi-1D structure of the Fermi surface strongly favors the formation…

Condensed Matter · Physics 2009-10-22 N. Dupuis

We theoretically investigate a Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) type superfluid phase transition in a driven-dissipative two-component Fermi gas. The system is assumed to be in the non-equilibrium steady state, which is tuned by…

Quantum Gases · Physics 2023-08-10 Taira Kawamura , Daichi Kagamihara , Yoji Ohashi

Exotic superconductivity is formed by unconventional electron pairing and exhibits various unique properties that cannot be explained by the basic theory. The Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state is known as an exotic…

Superconductivity · Physics 2022-10-05 Shusaku Imajo , Toshihiro Nomura , Yoshimitsu Kohama , Koichi Kindo

We calculate the zero temperature phase diagram of a polarized two-component Fermi gas in an array of weakly-coupled parallel one-dimensional (1D) 'tubes' produced by a two-dimensional optical lattice. Increasing the lattice strength drives…

Other Condensed Matter · Physics 2009-11-13 Meera M. Parish , Stefan K. Baur , Erich J. Mueller , David A. Huse

This study explores the impact of in-plane magnetic fields on the superconducting state in layered Ising superconductors, resulting in the emergence of the orbital Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state coupled with Josephson…

Superconductivity · Physics 2024-10-01 Hongyi Yan , Haiwen Liu , Yi Liu , Ding Zhang , X. C. Xie