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相关论文: Magnetic proximity effect at interface between a c…

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Two channels of the sd exchange interaction are considered in magnetic junctions. The first channel describes the interaction of transversal spins with the lattice magnetization. The second one describes the interaction of longitudinal…

材料科学 · 物理学 2010-10-22 S. G. Chigarev , E. M. Epshtein , Yu. V. Gulyaev , P. E. Zilberman

Proximity effect is used to generate effective topological superconductor by placing strong spin orbit interacting metals with superconducting materials, aiming to produce Majorana zero modes useful for topologically protected quantum…

强关联电子 · 物理学 2016-02-03 Wan-Ju Li , Sung-Po Chao , Ting-Kuo Lee

The influence of a single magnetic cluster in a non-magnetic host metal on the spin current $\mathbf{j}^{(s)}$ and the charge current $\mathbf{j}$ in the vicinity of a ferromagnetic STM tip is studied theoretically. Spin-flip processes due…

介观与纳米尺度物理 · 物理学 2015-05-14 Ye. S. Avotina , Yu. A. Kolesnichenko , J. M. van Ruitenbeek

We study the electric and thermoelectric transport properties of correlated quantum dots coupled to two ferromagnetic leads and one superconducting electrode. Transport through such hybrid devices depends on the interplay of…

介观与纳米尺度物理 · 物理学 2015-06-19 Krzysztof P. Wojcik , Ireneusz Weymann

We investigate the behavior of magnetic impurities placed on the surface of superconductor thin films with spin-orbit coupling. Our study reveals long-range interactions between the impurities, which decay according to a power law, mediated…

超导电性 · 物理学 2023-07-26 Yao Lu , I. V. Tokatly , F. Sebastian Bergeret

The proximity effect refers to the phenomenon whereby superconducting properties are induced in a normal conductor that is in contact with an intrinsically superconducting material. In particular, the combination of nano-structured…

介观与纳米尺度物理 · 物理学 2014-05-16 A. G. Moghaddam , T. Kernreiter , M. Governale , U. Zuelicke

Recent inelastic neutron scattering (INS) experiments on La$_{2-x}$Sr$_x$CuO$_4$ observed a {\it magnetic coherence effect}, i.e., strong frequency and momentum dependent changes of the spin susceptibility, $\chi''$, in the superconducting…

超导电性 · 物理学 2009-10-31 Dirk K. Morr , David Pines

Circulating orbital currents produced by the spin-orbit interaction for a single electron spin in a quantum dot are explicitly evaluated at zero magnetic field, along with their effect on the total magnetic moment (spin and orbital) of the…

介观与纳米尺度物理 · 物理学 2014-07-24 J. van Bree , A. Yu. Silov , P. M. Koenraad , M. E. Flatté

Motivated by the recent experimental realization of a quantum interference transistor based on the superconducting proximity effect, we here demonstrate that the inclusion of a textured ferromagnet both strongly enhances the flux…

超导电性 · 物理学 2013-08-29 Mohammad Alidoust , Klaus Halterman , Jacob Linder

In quantum materials, the electronic interaction and the electron-phonon coupling are, in general, two essential ingredients, the combined impact of which may drive exotic phases. Recently, an anomalously strong electron-electron…

强关联电子 · 物理学 2022-12-20 Dai-Wei Qu , Bin-Bin Chen , Hong-Chen Jiang , Yao Wang , Wei Li

We show that in superlattices with alternating superconducting (S) and ferromagnetic (F) layers the spontaneous magnetic field induced in the superconducting layers due to the electromagnetic proximity effect becomes dramatically enhanced…

超导电性 · 物理学 2022-03-25 A. V. Putilov , S. V. Mironov , A. S. Mel'nikov , A. I. Buzdin

We present an investigation of charge-compensated antiferromagnetic (Ca$_{x}$La$_{1-x}$)(Ba$_{1.75-x}$La$_{0.25+x}$)Cu$_{3}$O$_{y}$ single crystals using Raman scattering as well as muon spin rotation. In this system the parameter $x$…

In this work, it is considered a nanostructure composed by a quantum dot coupled to two ferromagnets and a superconductor. The transport properties of this system are studied within a generalized mean-field approximation taking into account…

介观与纳米尺度物理 · 物理学 2014-09-19 E. C. Siqueira , P. A. Orellana , A. C. Seridonio , R. C. Cestari , M. S. Figueira , G. G. Cabrera

Spin currents can modify the magnetic state of ferromagnetic ultrathin films through spin-orbit torque. They may be generated by means of spin-orbit interaction by either bulk or interfacial phenomena. Electrical transport measurements…

介观与纳米尺度物理 · 物理学 2022-06-27 A. Anadón , R. Guerrero , J. A. Jover-Galtier , A. Gudín , J. M. Díez , P. Olleros-Rodríguez , R. Miranda , J. Camarero , P. Perna

The possible realization of dissipationless chiral edge current in a topological insulator / magnetic insulator heterostructure is based on the condition that the magnetic proximity exchange coupling at the interface is dominated by the…

介观与纳米尺度物理 · 物理学 2017-11-08 Mingda Li , Qichen Song , Weiwei Zhao , Joseph A Garlow , Te-Huan Liu , Lijun Wu , Yimei Zhu , Jagadeesh Moodera , Moses H W Chan , Gang Chen , Cui-Zu Chang

$\mathrm{YBa_2Cu_3O_7/La_{2/3}Ca_{1/3}MnO_3}$ superconducting/ferromagnetic (SC/FM) multilayers have been studied by neutron reflectometry. Evidence for a characteristic difference between the structural and magnetic depth profiles is…

Heterostructures of superconducting and ferromagnetic materials are of fundamental interest because of the mutual interaction of antagonistic kinds of ordering at the S-F interface. Normally, the superconducting transition temperature Tc…

The ferromagnetic resonance of thin sputtered Ni80Fe20 films grown on Nb is measured. By varying the temperature and thickness of the Nb the role of the superconductivity on the whole ferromagnetic layer in these heterostructures is…

超导电性 · 物理学 2009-11-13 C. Bell , S. Milikisyants , M. Huber , J. Aarts

We analyze the superconducting gap in semiconductor/superconductor nanowires under orbital effects of a magnetic field in the weak- and strong-hybridization regimes using an universal procedure that guarantees the stationarity of the system…

介观与纳米尺度物理 · 物理学 2018-07-02 P. Wójcik , M. P. Nowak

The magnetic response of CaK(Fe$_{0.949}$Ni$_{0.051}$)$_4$As$_4$ was investigated by means of the muon-spin rotation/relaxation. The long-range commensurate magnetic order sets in below the N\'{e}el temperature $T_{\rm N}= 50.0(5)$~K. The…

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