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There is a recent upsurge of interests in flat bands in condensed-matter systems and the consequences for magnetism and superconductivity. This article highlights the physics, where peculiar quantum-mechanical mechanisms for the physical…

超导电性 · 物理学 2025-10-23 Hideo Aoki

We propose a mechanism which can generate supercurrents in spin-orbit coupled superconductors with charged magnetic inclusions. The basic idea is that through spin-orbit interaction, the in-plane electric field near the edge of each…

超导电性 · 物理学 2025-06-23 Benjamin A. Levitan , Yuval Oreg , Erez Berg

The ubiquitous domain wall kinetics under magnetic field or current application describes the dynamic properties in nanostructured magnets. However, when the geometrical size of a nanomagnetic system is constricted to the limiting domain…

介观与纳米尺度物理 · 物理学 2024-11-18 J. Guo , D. Hill , V. Lauter , L. Stingaciu , P. Zolnierczuk , C. A. Ullrich , D. K. Singh

Non-centrosymmetric superconductors have emerged as a fascinating avenue for exploring unconventional superconductivity. Their broken inversion and time-reversal symmetries make them prime candidates for realizing the intrinsic…

超导电性 · 物理学 2025-06-17 R. K. Kushwaha , Arushi , S. Jangid , P. K. Meena , R. Stewart , A. D. Hillier , R. P. Singh

The magnetic coupling between two concentric mesoscopic superconductors with non-zero thickness is studied using the nonlinear Ginzburg-Landau theory. We calculated the free energy, the expelled field, the total field profile, the…

超导电性 · 物理学 2007-05-23 B. J. Baelus , S. V. Yampolskii , F. M. Peeters

We examine the evidence for multiband superconductivity and non s-wave pairing in the non-centrosymmetric superconductor Nb$_{0.18}$Re$_{0.82}$, using electrical transport, magnetization and specific heat measurements. In the normal state,…

We show that the interaction between a superconducting order parameter and the magnetic moment of an atomic cluster in a two-dimensional s-wave superconductor with Rashba spin-orbit coupling generates magnetic anisotropy that can be…

介观与纳米尺度物理 · 物理学 2017-10-24 Eugene M. Chudnovsky

The properties of the known superconductors can be explained with the correlations dominated superconducting mechanism (CSM). The correlations have the spin correlation, the charge correlation and the spin-charge correlation, and their…

综合物理 · 物理学 2008-10-16 Tian De Cao

The magnetization of superconducting samples is influenced by their porosity. In addition to structural modifications and improved cooling, the presence of pores also plays a role in trapping magnetic flux. Pores have an impact on the…

超导电性 · 物理学 2024-03-19 Denis Gokhfeld

We discuss the unconventional magnetic response and vortex states arising in noncentrosymmetric superconductors with chiral octahedral and tetrahedral ($O$ or $T$) symmetry. We microscopically derive Ginzburg-Landau free energy. It is shown…

超导电性 · 物理学 2020-12-04 Albert Samoilenka , Egor Babaev

The LAO/STO interface hosts a two-dimensional electron system that is unusually sensitive to the application of an in-plane magnetic field. Low-temperature experiments have revealed a giant negative magnetoresistance (dropping by 70\%),…

介观与纳米尺度物理 · 物理学 2015-07-06 M. Diez , A. M. R. V. L. Monteiro , G. Mattoni , E. Cobanera , T. Hyart , E. Mulazimoglu , N. Bovenzi , C. W. J. Beenakker , A. D. Caviglia

Magneto-electric effect, that is an appearance of magnetisation induced by electric current is allowed by symmetry in metals with crystal structure without space inversion. The microscopic origin of this effect is spin-orbit coupling of…

强关联电子 · 物理学 2024-01-22 V. P. Mineev

Phase structure of the (2+1)-dimensional model with four-fermion interaction of spin-1/2 quasiparticles (electrons) both in the fermion-antifermion (or chiral) and fermion-fermion (or superconducting) channels is considered at nonzero…

高能物理 - 理论 · 物理学 2015-06-12 K. G. Klimenko , R. N. Zhokhov , V. Ch. Zhukovsky

We develop a theory of magneto-oscillations in photoconductivity of multisubband two-dimensional electron systems which takes into account strong Coulomb interaction between electrons. In the presence of a magnetic field oriented…

介观与纳米尺度物理 · 物理学 2012-07-25 Yuriy P. Monarkha

A hybrid ferromagnet-superconductor spin valve is proposed. Its operation relies on the interplay between nonequilibrium transport and proximity-induced exchange coupling in superconductors. Huge tunnel magnetoresistance values as large as…

超导电性 · 物理学 2007-05-23 F. Giazotto , F. Taddei , Rosario Fazio , F. Beltram

The symmetry properties and the general overview of the superconductivity theory in the itinerant ferromagnets and in materials without space parity are presented. The basic notions of unconventional superconductivity are introduced in…

超导电性 · 物理学 2009-11-10 V. P. Mineev

Electrostatic gating confines and controls the transport of electrons in integrated circuits. Magnons, the quanta of spin waves of the magnetic order, are promising alternative information carriers, but difficult to gate. Here we report…

介观与纳米尺度物理 · 物理学 2022-09-21 Tao Yu , Gerrit E. W. Bauer

We report the discovery of a super-giant tunneling anisotropic magnetoresistance in an epitaxially grown (Ga,Mn)As/GaAs/(Ga,Mn)As structure. The effect arises from a strong dependence of the electronic structure of ferromagnetic…

介观与纳米尺度物理 · 物理学 2009-11-10 C. Rüster , C. Gould , T. Jungwirth , J. Sinova , G. M. Schott , R. Giraud , K. Brunner , G. Schmidt , L. W. Molenkamp

Strongly out-of-equilibrium regimes in magnetic nanostructures exhibit novel properties, linked to the nonlinear nature of magnetization dynamics, which are of great fundamental and practical interest. Here, we demonstrate that field-driven…

Superconductivity in strongly correlated electron systems frequently emerges in proximity to another broken symmetry. In heavy-electron superconductors, the nearby ordered state most commonly is magnetism, and the so-called Ce115…

超导电性 · 物理学 2015-06-11 Tuson Park , Xin Lu , Han-Oh Lee , J. D. Thompson
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