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相关论文: Superconducting triplet spin valve

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We discuss the possibility of coexistence of spin density wave (antiferromagnetism) and triplet superconductivity as a particular example of a broad class of systems where the interplay of magnetism and superconductivity is important. We…

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

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

In a superconductor/ferromagnet hybrid, a magnetically controlled singlet-to-triplet Cooper pair conversion can modulate the superconducting critical temperature. In these triplet superconducting spin valves, such control usually requires…

Over the last decade it has been shown that magnetic non-collinearity at a s-wave superconductor/ferromagnet interface is a key ingredient for spin-singlet to spin-triplet pair conversion. This has been verified in several synthetic…

超导电性 · 物理学 2020-04-24 Ekta Bhatia , J. Devine-Stoneman , Zoe H. Barber , J. W. A. Robinson , Kartik Senapati

The theoretical description of the thermodynamic properties of ferromagnetic/superconductor/ferromagnetic (F/S/F) systems of nanoscopic scale is proposed. Their superconducting characteristics strongly depend on the mutual orientation of…

超导电性 · 物理学 2009-11-07 I. Baladie , A. Buzdin

We report the results of a study of superconducting proximity effects in clean Ferromagnet/Ferromagnet/Superconductor (${\rm F_1F_2S}$) heterostructures, where the pairing state in S is a conventional singlet s-wave. We numerically find the…

超导电性 · 物理学 2012-08-09 Chien-Te Wu , Oriol T. Valls , Klaus Halterman

We discuss the possibility of coexistence of spin density wave (antiferromagnetism) and triplet superconductivity as a particular example of a broad class of systems where the interplay of magnetism and superconductivity is important. We…

超导电性 · 物理学 2007-05-23 Wei Zhang , C. A. R. Sa de Melo

It is shown that the critical temperature for spin-triplet, p-wave superconductivity mediated by spin fluctuations is generically much higher in a Heisenberg ferromagnetic phase than in a paramagnetic one, due to the coupling of the magnons…

超导电性 · 物理学 2009-11-07 T. R. Kirkpatrick , D. Belitz , Thomas Vojta , R. Narayanan

A spin-triplet superconductor can harbor Majorana bound states that can be used in topological quantum computing. Recently, K2Cr3As3 and its variants with critical temperature Tc as high as 8 K have emerged as a new class of superconductors…

超导电性 · 物理学 2022-01-07 J. Yang , J. Luo , C. J. Yi , Y. G. Shi , Y. Zhou , Guo-qing Zheng

Applying the linearized Usadel equations, we consider the nucleation of superconductivity in multiply connected mesoscopic superconductor/ferromagnet (S/F) hybrids such as a thin superconducting ring on a ferromagnet with a uniform in-plane…

超导电性 · 物理学 2019-07-17 A. V. Samokhvalov , J. W. A. Robinson , A. I. Buzdin

Superconducting spintronics in hybrid superconductor/ferromagnet (S-F) heterostructures provides an exciting potential new class of device. The prototypical super-spintronic device is the superconducting spin-valve, where the critical…

Cooper pairs in superconductors are normally spin singlet. Nevertheless, recent studies suggest that spin-triplet Cooper pairs can be created at carefully engineered superconductor-ferromagnet interfaces. If Cooper pairs are spin-polarized…

超导电性 · 物理学 2020-09-01 Lailai Li , Yuelei Zhao , Xixiang Zhang , Young Sun

We analyze the magnitude of the specific heat jump \Delta C at the superconducting transition temperature T_c in the situation when superconductivity develops in the pre-existing antiferromagnetic phase. We show that \Delta C/T_c differs…

超导电性 · 物理学 2012-02-24 M. G. Vavilov , A. V. Chubukov , A. B. Vorontsov

We study the shift of the the superconducting transition temperature $T_c$ in ferromagnetic-superconducting bi-layers and in a superconducting film supplied a square array of ferromagnetic dots. We find that the transition temperature in…

超导电性 · 物理学 2009-11-10 Valery L. Pokrovsky , Hongduo Wei

In their article, Zhang et al. [Phys. Rev. B 86, 024516 (2012)] present a remarkable result for A$_x$(S)$_y$TiNCl compounds ($\alpha$-phase TiNCl partially intercalated with alkali A and optionally co-intercalated molecular species S),…

超导电性 · 物理学 2015-06-23 Dale R. Harshman , Anthony T. Fiory

Motivated by a recent angle-resolved thermal conductivity experiment that shows a twofold gap symmetry in the high-field and low-temperature C phase in the heavy-fermion superconductor UPt$_3$, we group-theoretically identify the pairing…

超导电性 · 物理学 2012-07-04 Yasumasa Tsutsumi , Kazushige Machida , Tetsuo Ohmi , Masa-aki Ozaki

We study a triplet spin valve obtained by intercalating a triplet superconductor spacer between two ferromagnetic regions with non-collinear magnetizations. We demonstrate that the magnetoresitance of the triplet spin valve depends on the…

介观与纳米尺度物理 · 物理学 2013-12-02 F. Romeo , R. Citro

We consider thin superconducting (S) films of thickness d $\ll \xi_{0}$, sandwiched between two ferromagnetic semiconducting insulators (FI) with differently orientated magnetizations - the FI-S-FI system. We calculate the dependence of the…

凝聚态物理 · 物理学 2009-10-31 Miodrag L. Kulic , Martin Endres

In a ferromagnet/superconductor/ferromagnet (F/S/F) superconducting spin-valve (SSV), a change of the magnetization alignment of the two F layers modulates the critical temperature (Tc) of the S layer. The Tc-switching (the SSV effect) is…

超导电性 · 物理学 2024-07-19 Tomohiro Kikuta , Sachio Komori , Keiichiro Imura , Tomoyasu Taniyama

Magnetization noncollinearity in ferromagnet-superconductor (F/S) heterostructures is expected to enhance the superconducting transition temperature (Tc) according to the domain-wall superconductivity theory, or to suppress Tc when…