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Two-dimensional (2D) van der Waals heterostructures serve as a promising platform to exploit various physical phenomena in a diverse range of novel spintronic device applications. The efficient spin injection is the prerequisite for these…

介观与纳米尺度物理 · 物理学 2019-10-24 Chaolong Tang , Zhaowei Zhang , Shen Lai , Qinghai Tan , Wei-bo Gao

Spin transport in superconductors offers a compelling platform to merge the dissipationless nature of superconductivity with the functional promise of spin-based electronics. A significant challenge in achieving spin polarisation in…

介观与纳米尺度物理 · 物理学 2025-05-19 Aleix Barrera , Huidong Li , Thomas Gunkel , Jordi Alcalà , Silvia Damerio , Can Onur Avci , Anna Palau

We have analyzed the quantum interference effects in the macroscopic ''superconducting molecule''. The composite system consists of two massive superconducting rings, each interrupted by a Josephson junction, which are at the same time…

超导电性 · 物理学 2009-10-31 R. de Bruyn Ouboter , A. N. Omelyanchouk , E. D. Vol

The magnetic proximity effect in superconductor/ferromagnet (S/F) heterostructures with a large number of atomic layers leads to a suppression of the superconducting order parameter and appearance of Zeeman-like spin splitting of the local…

超导电性 · 物理学 2024-12-19 A. S. Ianovskaia , G. A. Bobkov , A. M. Bobkov , I. V. Bobkova

Electron-doped Eu(Fe$_{0.93}$Rh$_{0.07}$)$_2$As$_2$ has been systematically studied by high pressure investigations of the magnetic and electrical transport properties, in order to unravel the complex interplay of superconductivity and…

超导电性 · 物理学 2017-05-31 A. Löhle , A. Baumgartner , S. Zapf , W. H. Jiao , G. H. Cao , M. Dressel

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…

Superconducting heterostructures with spin-active materials have emerged as promising platforms for engineering topological superconductors featuring Majorana bound states at surfaces, edges and vortices. Here we present a method for…

超导电性 · 物理学 2012-08-09 Jens Michelsen , Roland Grein

We theoretically study self-consistent proximity effects in finite-sized systems consisting of ferromagnet ($\rm F$) layers coupled to an $s$-wave superconductor ($\rm S$). We consider both $\rm SF_1F_2$ and $\rm SH$ nanostructures, where…

超导电性 · 物理学 2018-10-30 Klaus Halterman , Mohammad Alidoust

We study the interplay between magnetism and superconductivity in high quality YBa2Cu3O7 (YBCO) / La0.7Ca0.3MnO3(LCMO)superlattices. We find evidence for the YBCO superconductivity depression in presence of the LCMO layers. We show that due…

凝聚态物理 · 物理学 2009-11-10 Z. Sefrioui , D Arias , V. Pena , J. E. Villegas , M. Varela , P. Prieto , C. Leon , J. L. Martinez , J. Santamaria

We studied the proximity effect between a superconductor (Nb) and a diluted ferromagnetic alloy (CuNi) in a bilayer geometry. We measured the local density of states on top of the ferromagnetic layer, which thickness varies on each sample,…

介观与纳米尺度物理 · 物理学 2009-11-11 L. Cretinon , A. K. Gupta , H. Sellier , F. Lefloch , M. Faure , A. Buzdin , H. Courtois

We theoretically consider the proximity effect in semiconductor-superconductor hybrid nanostructures, which are being extensively studied in the context of the ongoing search for non-Abelian Majorana fermions in solid state systems.…

介观与纳米尺度物理 · 物理学 2013-05-21 Tudor D. Stanescu , S. Das Sarma

We report an experimental study of electron transport properties of MnSe/(Bi,Sb)2Te3 heterostructures, in which MnSe is an antiferromagnetic insulator, and (Bi,Sb)2Te3 is a three-dimensional topological insulator (TI). Strong magnetic…

介观与纳米尺度物理 · 物理学 2021-04-29 Yuxin Liu , Xuefan Niu , Rencong Zhang , Qinghua Zhang , Jing Teng , Yongqing Li

The complex investigation of dc transport and magnetic properties of the epitaxial manganite/iridate heterostructure was carried out by mean of X-ray (XRD), dc resistance measurements, ferromagnetic resonance (FMR) and polarized neutron…

介观与纳米尺度物理 · 物理学 2020-10-07 G. A. Ovsyannikov , T. A Shaikhulov , V. V. Demidov , K. L. Stankevich , Yu. Khaydukov , N. V. Andreev

We investigate theoretically how the proximity effect in superconductor/ferromagnet hybrid structures with intrinsic spin-orbit coupling manifests in the density of states and critical temperature. To describe a general scenario, we allow…

超导电性 · 物理学 2015-08-04 Sol H. Jacobsen , Jabir Ali Ouassou , Jacob Linder

BaRuO3 having five different crystal structures has been synthesized by varying the pressure while sintering. Contrary to the other phases being nonmagnetic, the cubic perovskite phase synthesized recently shows an itinerant ferromagnetic…

材料科学 · 物理学 2014-05-20 Young-Joon Song , K. -W. Lee

Recent discovery of superconducting (SC) ternary iron selenides has block antiferromagentic (AFM) long range order. Many experiments show possible mesoscopic phase separation of the superconductivity and antiferromagnetism, while the…

超导电性 · 物理学 2012-03-15 Hong-Min Jiang , Wei-Qiang Chen , Zi-Jian Yao , Fu-Chun Zhang

Spin valves are essential components in spintronic memory devices, whose conductance is modulated by controlling spin-polarized electron tunneling through the alignment of the magnetization in ferromagnetic elements. Whereas conventional…

An experimental study of proximity effect in La{0.67}Sr{0.33}MnO3 - YBa2Cu3O7 - La{0.67}Sr{0.33}MnO3 trilayers is reported. Transport measurements on these samples show clear oscillations in critical current (I_c) as the thickness of…

超导电性 · 物理学 2007-05-23 K. senapati , R. C. Budhani

The letter deals with the spin-freezing process observed by means of NMR-NQR relaxation or by muon spin rotation in underdoped cuprate superconductors. This phenomenon, sometimes referred as coexistence of antiferromagnetic and…

超导电性 · 物理学 2009-11-07 M. Eremin , A. Rigamonti

The interaction between superconductivity and ferromagnetism in thin film superconductor/ferromagnet heterostructures is usually reflected by a change in superconductivity of the S layer set by the magnetic state of the F layers. Here we…