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We studied the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) like state establishing due to the proximity effect in superconducting Nb/Cu41Ni59 bilayers. Using a special wedge-type deposition technique, series of 20-35 samples could be fabricated…

We demonstrate that the Fulde-Ferrell (FF) phase can be induced uniquely by the orbital effect in a cylindrical metallic nanowire. In the external magnetic field the two-fold degeneracy with respect to the orbital quantum number $m$ is…

Superconductivity · Physics 2015-05-12 Paweł Wójcik , Michał Zegrodnik , Józef Spałek

The recent experimental support for the presence of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) phase in the CeCoIn5 directed the attention towards the mechanisms responsible for this type of superconductivity. We investigate the FFLO state…

Superconductivity · Physics 2009-07-15 Andrzej Ptok , Maciej M. Maska , Marcin Mierzejewski

Superconductors are a striking example of a quantum phenomenon in which electrons move coherently over macroscopic distances without scattering. The high-temperature superconducting oxides(cuprates) are the most studied class of…

In the traditional view, the magnetic moment appearing in the superconducting region is induced by equal-spin triplet superconducting correlations in superconductor ($S$) ferromagnet ($F$) heterostructure with noncollinear magnetization. In…

Superconductivity · Physics 2019-01-15 Hao Meng , Jiansheng Wu , Xiuqiang Wu , Mengyuan Ren , Yajie Ren , Jinbin Yao

We present an analysis of the magnetic field distribution in the Abrikosov lattice of high-$\kappa$ superconductors with singlet pairing in the case where the critical field is mainly determined by the Pauli limit and the superfluid…

Superconductivity · Physics 2015-05-20 V. P. Michal , V. P. Mineev

We show that nonuniform superconductors of the Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) type conduct electric current in the way which is very different from the usual case. We discuss both equilibrium and nonequilibrium properties using a…

Superconductivity · Physics 2017-12-13 K. V. Samokhin , B. P. Truong

We compare the upper critical field of bulk single-crystalline samples of the two intrinsic transition metal dichalcogenide (TMD) superconductors, 2H-NbSe2 and 2H-NbS2, in high magnetic fields where their layer structure is aligned strictly…

The general relativistic modifications to the resistive state in superconductors of second type in the presence of a stationary gravitational field are studied. Some superconducting devices that can measure the gravitational field by its…

General Relativity and Quantum Cosmology · Physics 2009-11-11 B. J. Ahmedov , V. G. Kagramanova

Superconductor with a spatially-modulated order parameter is known as Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) superconductor. Using the time-dependent Ginzburg-Landau (TDGL) formalism we have theoretically studied the temporal behaviour of…

Superconductivity · Physics 2013-02-08 Arghya Dutta , Jayanta K. Bhattacharjee

We demonstrate that in a wide class of multilayered superconductor - ferromagnet structures (e.g., S/F, S/F/N and S/F/F') the vanishing Meissner effect signals the appearance of the in-plane Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) modulated…

Superconductivity · Physics 2015-06-05 S. Mironov , A. Mel'nikov , A. Buzdin

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…

Superconductivity · Physics 2009-11-13 Youichi Yanase

A key prediction of the SO(5) theory is the antiferromagnetic vortex state. Recent neutron scattering experiment on LSCO superconductors revealed enhanced antiferromagnetic order in the vortex state. Here we review theoretical progress…

Superconductivity · Physics 2009-11-07 Jiang-Ping Hu , Shou-Cheng Zhang

Vortex tilt response in Fulde-Ferrell-Larkin-Ovchinnikov (FFLO) vortex lattice is theoretically examined as a probe reflecting the spatial structure of this state. In the FFLO state with nodal planes perpendicular to the magnetic field in a…

Superconductivity · Physics 2009-11-11 Ryusuke Ikeda

We report transport measurements on superconducting wire networks which provide the first experimental evidence of a new localization phenomenon induced by magnetic field on a 2D periodic structure. In the case of a superconducting wave…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 C. C. Abilio , P. Butaud , Th. Fournier , J. Vidal , S. Tedesco , B. Dalzotto , B. Pannetier

We derive critical field H_c2 equations for antiferromagnetic \textit{s}-wave, d_{x^2-y^2}-wave, and d_{xy}-wave superconductors with effective mass anisotropy in three dimensions, where we take into account (i) the Jaccarino-Peter…

Superconductivity · Physics 2007-05-23 Yuuichi Suginishi , Hiroshi Shimahara

A two dimensional electronic system with novel electronic properties forms at the interface between the insulators LaAlO$_3$ and SrTiO$_3$. Samples fabricated until now have been found to be either magnetic or superconducting, depending on…

Materials Science · Physics 2015-05-13 Lu Li , C. Richter , J. Mannhart , R. C. Ashoori

The phase diagram of the layered organic superconductor $\kappa$-(ET)$_{2}$Cu[N(CN)$_{2}$]Cl has been accurately measured from a combination of $^{1}$H NMR and AC susceptibility techniques under helium gas pressure. The domains of stability…

Strongly Correlated Electrons · Physics 2009-10-31 S. Lefebvre , P. Wzietek , S. Brown , C. Bourbonnais , D. Jerome , C. Meziere , M. Fourmigue , P. Batail

We study the vortex state of a layered superconductor with vertical line nodes on its Fermi surface when a magnetic field is applied in the ab-plane direction. We rotate the magnetic field within the plane, and analyze the change of…

Superconductivity · Physics 2016-08-31 Masafumi Udagawa , Youichi Yanase , Masao Ogata

We show that while orbital magnetic field and disorder, acting individually weaken superconductivity, acting together they produce an intriguing evolution of a two-dimensional type-II s-wave superconductor. For weak disorder, the critical…

Superconductivity · Physics 2023-10-30 Anushree Datta , Anurag Banerjee , Nandini Trivedi , Amit Ghosal