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A microscopic mean-field theory of the phase coexistence between ferromagnetism and superconductivity in the weakly ferromagnetic itinerant electron system is constructed, while incorporating a realistic mechanism for superconducting…

强关联电子 · 物理学 2007-05-23 Andriy H. Nevidomskyy

We report on the study of electron transport in the oxide heterostructures with superconductor/magnetic matter (S/M) interfaces where anomaly large penetration of superconducting correlations in magnetic matter (proximity effect) is…

The authors discuss the possibility of coexistence of antiferromagnetism and triplet superconductivity as a particular example of a broad class of systems where the interplay of magnetism and superconductivity is important. This paper…

超导电性 · 物理学 2009-11-10 Wei Zhang , C. A. R. Sa de Melo

Magnetic superconductors are specific materials exhibiting two antagonistic phenomena, superconductivity and magnetism, whose mutual interaction induces various emergent phenomena, such as the reentrant superconducting transition associated…

The potential application of topological superconductivity in quantum transport and quantum information has fueled an intense investigation of hybrid materials with emergent electronic properties, including magnet-superconductor…

Starting from the London - type model we study the domain structures in ferromagnetic superconductors taking account of the nucleation of vortices and antivortices coupled to the magnetic texture. We predict that the coupling between…

超导电性 · 物理学 2014-04-23 I. M. Khaymovich , A. S. Mel'nikov , A. I. Buzdin

Recently discovered superconducting P-doped EuFe$_2$As$_2$ compounds reveal the situation when the superconducting critical temperature substantially exceeds the ferromagnetic transition temperature. The main mechanism of the interplay…

超导电性 · 物理学 2019-03-26 Zh. Devizorova , S. Mironov , A. Buzdin

In several unconventional superconductors, the highest superconducting transition temperature $T_{c}$ is found in a region of the phase diagram where the antiferromagnetic transition temperature extrapolates to zero, signaling a putative…

超导电性 · 物理学 2017-05-31 Xiaoyu Wang , Yoni Schattner , Erez Berg , Rafael M. Fernandes

Superconductivity and ferromagnetism are two antagonistic cooperative phenomena, which makes it difficult for them to coexist. Here we demonstrate experimentally that they do coexist in EuFe$_{2}$(As$_{1-x}$P$_{x}$)$_{2}$ with $0.2\leq…

超导电性 · 物理学 2015-05-28 Guanghan Cao , Shenggao Xu , Zhi Ren , Shuai Jiang , Chunmu Feng , Zhu'an Xu

We studied experimentally the effect of a stripe-like domain structure in a ferromagnetic BaFe_{12}O_{19} substrate on the magnetoresistance of a superconducting Pb microbridge. The system was designed in such a way that the bridge is…

We present new results for the properties of phases and phase transitions in spin-triplet ferromagnetic superconductors. The superconductivity of the mixed phase of coexistence of ferromagnetism and unconventional superconductivity is…

超导电性 · 物理学 2009-11-11 Diana V. Shopova , Dimo I. Uzunov

Ferromagnetism (FM) and superconductivity (SC) are two of the most famous macroscopic quantum phenomena. However, nature normally does not allow SC and FM to coexist without significant degradation. Here, we introduce the first fully…

A two-sublattice spin-fermion model of ferrimagnetic spinel, with spin-$1/2$ itinerant electrons at the sublattice $A$ site and spin-$s$ localized electrons at the sublattice $B$ site is considered. The exchange between itinerant and…

强关联电子 · 物理学 2015-06-23 Naoum Karchev

The vortex lattice with the superconducting and normal state charge carriers fractions may be regarded as three independent subsystems mutually connected by interactions. The equation of motion for these three subsystems must be solved…

超导电性 · 物理学 2009-10-31 J. Kolacek , E. Kawate

We investigate thermoelectric properties of a ferromagnet-superconductor hybrid structure with Rashba spin-orbit interaction and delta function potential barrier at the interfacial layer. The exponential rise of thermal conductance with…

介观与纳米尺度物理 · 物理学 2017-09-07 Paramita Dutta , Arijit Saha , A. M. Jayannavar

The copper-oxide based high temperature superconductors have complex phase diagrams with multiple ordered phases. It even appears that the highest superconducting transition temperatures for certain cuprates are found in samples which…

强关联电子 · 物理学 2009-11-07 Steven A. Kivelson , G. Aeppli , Victor J. Emery

Ferromagnetic substrates can significantly influence the electromagnetic response of a coated conductor to an external magnetic field and transport current. This study analyzes this response theoretically using the thin shell…

超导电性 · 物理学 2025-04-22 Vladimir Sokolovsky , Leonid Prigozhin

Two possible physical mechanisms of superconductivity suppression at superconductor/antiferromagnet (S/AF) interfaces, which work even for interfaces with compensated antiferromagnets, were reported. One of them suggests that the Neel order…

超导电性 · 物理学 2023-08-16 G. A. Bobkov , I. V. Bobkova , A. M. Bobkov

One of the most famous proximity effects at ferromagnet/superconductor (F/S) interfaces is partial conversion of singlet superconductivity to triplet pairing correlations. Due to the presence of macroscopic exchange field in the ferromagnet…

超导电性 · 物理学 2023-11-28 G. A. Bobkov , V. M. Gordeeva , A. M. Bobkov , I. V. Bobkova

Thermoelectric effects result from the coupling of charge and heat transport, and can be used for thermometry, cooling and harvesting of thermal energy. The microscopic origin of thermoelectric effects is a broken electron-hole symmetry,…

超导电性 · 物理学 2016-04-08 S. Kolenda , P. Machon , D. Beckmann , W. Belzig