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相关论文: Vortex tilt modulus in Fulde-Ferrell-Larkin-Ovchin…

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We study through controlled numerical simulation the ground state properties of spin-polarized strongly interacting fermi gas in an anisotropic optical lattice, which is described by an effective one-dimensional general Hubbard model with…

量子物理 · 物理学 2009-06-24 B. Wang , L. -M. Duan

We present a ^{115}In NMR study of the quasi two-dimensional heavy-fermion superconductor CeCoIn_5 believed to host a Fulde-Ferrel-Larkin-Ovchinnkov (FFLO) state. In the vicinity of the upper critical field and with a magnetic field applied…

超导电性 · 物理学 2009-11-10 K. Kakuyanagi , M. Saito , K. Kumagai , S. Takashina , M. Nohara , H. Takagi , Y. Matsuda

Single crystals of the layered organic type II superconductor, $\kappa$-(BEDT-TTF)$_{2}$Cu(NCS)$_{2}$, have been studied in magnetic fields of up to 33 T and at temperatures between 0.5 K and 11 K using a compact differential susceptometer.…

强关联电子 · 物理学 2009-11-07 J. Singleton , J. A. Symington , M. -S. Nam , A. Ardavan , M. Kurmoo , P. Day

Quasi-two dimensional superconductors with sufficiently weak interlayer coupling allow magnetic flux to penetrate in the form of Josephson vortices for in-plane applied magnetic fields. A consequence is the dominance of the Zeeman…

强关联电子 · 物理学 2016-02-17 G. Koutroulakis , H. Kühne , J. A. Schlueter , J. Wosnitza , S. E. Brown

We study Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state of superconductors with and without inversion symmetry based on the Hubbard model on the square lattice near half-filling, using the random phase approximation. We show that center of…

超导电性 · 物理学 2009-11-13 Takehito Yokoyama , Seiichiro Onari , Yukio Tanaka

The Fulde-Ferrel-Larkin-Ovchinnikov (FFLO) state near the antiferromagnetic quantum critical point (AFQCP) is investigated by analyzing the two dimensional Hubbard model on the basis of the fluctuation exchange (FLEX) approximation. The…

超导电性 · 物理学 2009-11-13 Youichi Yanase

We develop the Ginzburg-Landau theory of the vortex lattice in clean isotropic three-dimensional superconductors at large Maki parameter, when inhomogeneous Fulde-Ferrell-Larkin-Ovchinnikov state is favored. We show that diamagnetic…

超导电性 · 物理学 2015-03-31 M. Houzet , V. P. Mineev

The crystal structure determines both the Fermi surface and pairing symmetry of the superconducting metals. It is demonstrated in the framework of the general phenomenological approach that this is of the primary importance for the…

超导电性 · 物理学 2009-11-13 D. Denisov , A. Buzdin , H. Shimahara

The Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state can emerge in superconductors for which the orbital critical field exceeds the Pauli limit. Here, we present angular-resolved specific-heat data of the quasi-two-dimensional organic…

超导电性 · 物理学 2022-08-10 Tommy Kotte , Hannes Kühne , John A Schlueter , Gertrud Zwicknagl , J. Wosnitza

The heavy-fermion superconductor CeCoIn5 is the first material, where different experimental probes show strong evidence pointing to the realization of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state. The inhomogeneous superconducting…

强关联电子 · 物理学 2009-11-13 M. Nicklas , C. F. Miclea , J. L. Sarrao , J. D. Thompson , G. Sparn , F. Steglich

Effect of the phase fluctuations of the order parameter on the stability of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) states are examined in exactly two-dimensional (2D) type-II superconductors with cylindrically symmetric Fermi surface…

超导电性 · 物理学 2015-06-24 Hiroshi Shimahara

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…

超导电性 · 物理学 2022-10-05 Shusaku Imajo , Toshihiro Nomura , Yoshimitsu Kohama , Koichi Kindo

A conventional superconducting state may be replaced by another dissipationless state hosting Cooper pairs with a finite momentum, leaving thermodynamic footprints for such a phase transition. Recently, a novel type of finite momentum…

In superconducting nanofilms the energy quantization induced by the confinement in the direction perpendicular to the film leads to a multiband character of the system which results in the thickness-dependent oscillations of the in-plane…

介观与纳米尺度物理 · 物理学 2015-02-18 P. Wójcik , M. Zegrodnik

We study theoretically the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) states appearing locally in a superconducting thin film with a small circular magnetic cluster. The pair potential, the pairing correlations, the free-energy density, and…

超导电性 · 物理学 2023-08-16 Shu-Ichiro Suzuki , Takumi Sato , Alexander A. Golubov , Yasuhiro Asano

The ground-state phase diagram of attractively-interacting Fermi gases in two dimensions with a population imbalance is investigated. We find the regime of stability for the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phase, in which pairing…

量子气体 · 物理学 2015-12-09 Daniel E. Sheehy

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…

强关联电子 · 物理学 2008-06-05 M. Rizzi , Marco Polini , M. A. Cazalilla , M. R. Bakhtiari , M. P. Tosi , Rosario Fazio

The $d$-wave superconductor $\mathrm{CeCoIn_5}$ has been proposed as a strong candidate for supporting the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state near the low-temperature boundary of its upper critical field. Neutron diffraction,…

超导电性 · 物理学 2020-06-02 Shi-Zeng Lin , Duk Y. Kim , Eric D. Bauer , Filip Ronning , J. D. Thompson , Roman Movshovich

We study the effect of a parallel magnetic field in a thin and small superconductor. The field suppresses superconductivity through Zeeman coupling while stabilizes the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) state at high fields before…

超导电性 · 物理学 2019-02-21 Tom Kim , Chih-Chun Chien , Shi-Zeng Lin

We present the study of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) pairing states in the $p$-orbital bands in both two and three-dimensional optical lattices. Due to the quasi one-dimensional band structure which arises from the…

量子气体 · 物理学 2011-07-01 Zi Cai , Yupeng Wang , Congjun Wu