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We present an extensive study of two-dimensional Larkin-Ovchinnikov (LO) superfluidity in a spin-imbalanced two-component atomic Fermi gas. In the context of Fulde-Ferrell-Larkin- Ovchinnikov (FFLO) phase, we explore a wide and generic…

Quantum Gases · Physics 2017-01-11 Umberto Toniolo , Brendan Mulkerin , Xia-Ji Liu , Hui Hu

We derive the fluctuational magnetization and the paraconductivity of Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconductors in their normal state. The FFLO superconducting fluctuations induce oscillations of the magnetization between…

Superconductivity · Physics 2009-07-04 François Konschelle , Jérôme Cayssol , Alexandre I. Buzdin

The effect of impurities on Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) states in a layered superconductor with d-wave pairing symmetry is investigated using the tight-binding model and the Bogoliubov-de Gennes equations. At low temperature and…

Superconductivity · Physics 2009-11-13 Qian Wang , Chia-Ren Hu , Chin-Sen Ting

The Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phase in the vortex lattice state is quantitatively studied using the selfconsistent Eilenberger theory in three-dimensional (3D) space. We estimate free energy to determine the FFLO phase diagram…

Superconductivity · Physics 2011-12-06 Kenta M. Suzuki , Yasumasa Tsutsumi , Noriyuki Nakai , Masanori Ichioka , Kazushige Machida

The exotic Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) states have been actively searched for experimentally since the mean-field based FFLO theories were put forward half a century ago. Here we investigate the stability of FFLO states against…

Superconductivity · Physics 2018-04-25 Jibiao Wang , Yanming Che , Leifeng Zhang , Qijin Chen

Electronic structure and the shape of the Fermi surface are known to be of fundamental importance for the superconducting instability in real materials. We demonstrate that such an instability may be explored by static Cooper pair…

Superconductivity · Physics 2017-10-06 Andrzej Ptok , Konrad J. Kapcia , Przemysław Piekarz , Andrzej M. Oleś

We examine the existence and characteristics of the exotic Fulde-Ferrel-Larkin-Ovchinnikov (FFLO) phase in a one-dimensional Fermi gas with attractive Hubbard interactions, in the presence of spin-orbit coupling (SOC) and Zeeman field. We…

Quantum Gases · Physics 2021-08-10 Monalisa Singh Roy , Manoranjan Kumar

When the inversion symmetry is broken, the spin-orbit coupling reduces the transition temperature of some types of spin triplet superconductivity, which is similar to the case that magnetic field reduces the spin singlet superconductivity…

Superconductivity · Physics 2009-11-11 Hiroko Tanaka , Hirono Kaneyasu , Yasumasa Hasegawa

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

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

We study the ground state properties of a ferromagnet-superconductor heterostructure on the basis of a quasiclassical theory. We have solved the Eilenberger equations together with Maxwell's equation fully self-consistently and found that…

Mesoscale and Nanoscale Physics · Physics 2009-11-10 M. Krawiec , B. L. Gyorffy , J. F. Annett

We examine the coexistence of the vortex state and the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state in quasi-two-dimensional type-II superconductors and the crossover from the coexistence state to the pure FFLO state when the Maki…

Superconductivity · Physics 2013-05-29 Hiroshi Shimahara

We consider a formation of the Larkin-Ovchinnikov-Fulde-Ferrell (LOFF) phase in a quasi-one-dimensional (Q1D) conductor in a magnetic field, parallel to its conducting chains, where we take into account both the paramagnetic spin-splitting…

Superconductivity · Physics 2015-05-20 A. G. Lebed , Si Wu

We study the angular Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state, in which the rotation symmetry is spontaneously broken, in population imbalanced fermion gases. The superfluid gases at near T=0 are investigated on the basis of the…

Quantum Gases · Physics 2015-05-14 Youichi Yanase

We investigate the influence of Landau quantization on the superconducting instability for a pure layered superconductor in the magnetic field directed perpendicular to the layers. We demonstrate that the quantization corrections to the…

Superconductivity · Physics 2019-05-08 Kok Wee Song , Alexei E. Koshelev

We study the phase diagram of spatially inhomogeneous Fulde-Ferrell-Larkin-Ovchinnikov(FFLO) superconducting state using the Ginzburg-Landau(GL) free energy, derived from the microscopic Hamiltonian of the system, and notice that it has a…

Superconductivity · Physics 2013-04-30 Arghya Dutta , Jayanta K. Bhattacharjee

The antiferromagnetic (AFM) order in the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconducting state is analyzed on the basis of a Ginzburg-Landau theory. To examine the possible AFM-FFLO state in CeCoIn_5, we focus on the incommensurate…

Superconductivity · Physics 2015-05-27 Youichi Yanase , Manfred Sigrist

The critical field behavior of a layered Ising superconductor with finite number of layers is studied. Under in-plane magnetic fields, the finite-momentum superconductivity dubbed as the orbital Fulde- Ferrell-Larkin-Ovchinnikov state is…

Superconductivity · Physics 2023-10-03 Noah F. Q. Yuan

In three dimensional Fermi gases with spin imbalance, a competition exists between Cooper pairing with zero and with finite momentum. The latter gives rise to the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superfluid phase, which only exists…

Quantum Gases · Physics 2011-07-08 Jeroen P. A. Devreese , Michiel Wouters , Jacques Tempere

Previous works on nodal d-wave superconductors have shown that a Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) like modulated superconducting (SC) state can be realized with no magnetic field when quasiparticles acquire an additional linear term…

Superconductivity · Physics 2015-06-16 M. Hachiya , K. Aoyama , R. Ikeda
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