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The combination of spin-orbit coupling and superconductivity induces unconventional spin-triplet correlation in Ising superconductors. We theoretically investigate the spin transport through a normal metal-Ising superconductor junction,…

Superconductivity · Physics 2024-10-30 Yi-Xin Dai , Yue Mao , Qing-Feng Sun

We predict the occurrence of odd frequency equal-spin-triplet correlations at a normal metal-superconductor junction. This result is significant because equal-spin-triplet correlations are associated with the presence of dissipation-less…

Superconductivity · Physics 2021-09-02 Subhajit Pal , Colin Benjamin

A graphene $pn$ junction is studied theoretically in the presence of both intrinsic and Rashba spin-orbit couplings. We show that a crossover from perfect reflection to perfect transmission is achieved at normal incidence by tuning the…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 A. Yamakage , K. -I. Imura , J. Cayssol , Y. Kuramoto

Novel fermions with a pseudospin-1 structure can be realized as emergent quasiparticles in condensed matter systems. Here, we investigate its unusual properties during the Andreev reflection at a normal-metal/superconductor (NS) interface.…

Mesoscale and Nanoscale Physics · Physics 2020-07-01 Xiaolong Feng , Ying Liu , Zhi-Ming Yu , Zhongshui Ma , L. K. Ang , Yee Sin Ang , Shengyuan A. Yang

We study theoretically reflection problem in the junction between a normal metal and an insulator characterized by a parameter $M$, which is a usual insulator for $M>0$ or a quantum spin Hall system for $M<0$. The spin rotation angle…

Mesoscale and Nanoscale Physics · Physics 2009-04-28 Takehito Yokoyama , Yukio Tanaka , Naoto Nagaosa

We study the Andreev reflections and the quantum transport in the proximitized graphene/superconductor junction. The proximitized graphene possesses the pseudospin staggered potential and the intrinsic spin-orbit coupling induced by…

Mesoscale and Nanoscale Physics · Physics 2023-07-20 Lu Gao , Qiang Cheng , Qing-Feng Sun

We discuss the surface impedance (Z=R-iX) of a normal-metal/superconductor proximity structure taking into account the spin-dependent potential at the junction interface. Because of the spin mixing transport at the interface, odd-frequency…

Superconductivity · Physics 2015-06-04 Yasuhiro Asano , Masahiro Ozaki , Tetsuro Habe , Alexander A. Golubov , Yukio Tanaka

We investigate the transport properties of a junction consisting of an electron-hole bilayer in contact with normal and superconducting leads. The electron-hole bilayer is considered as a semi-metal with two electronic bands. We assume that…

Superconductivity · Physics 2017-08-09 D. Bercioux , T. M. Klapwijk , F. S. Bergeret

We report on nonlocal transport in superconductor hybrid structures, with ferromagnetic as well as normal-metal tunnel junctions attached to the superconductor. In the presence of a strong Zeeman splitting of the density of states, both…

Superconductivity · Physics 2013-02-26 M. J. Wolf , F. Hübler , S. Kolenda , H. v. Löhneysen , D. Beckmann

Topological nodal-line semimetals are predicted to exhibit unique drumhead-like surface states (DSS). Yet, a direct detection of such states remains a challenge. Here, we propose spin-resolved transport in a junction between a normal metal…

Mesoscale and Nanoscale Physics · Physics 2018-10-19 Wei Chen , Kun Luo , Lin Li , Oded Zilberberg

We study the crossed Andreev reflection and the nonlocal transport in the proximitized graphene/supercondcutor/proximitized graphene junctions with the pseudospin staggered potential and the intrinsic spin-orbit coupling. The crossed…

Superconductivity · Physics 2023-10-27 Shu-Chang Zhao , Lu Gao , Qiang Cheng , Qing-Feng Sun

We derive the reflection and refraction laws for an electron spin incident from a quasi-two-dimensional medium with no spin-orbit interaction on another with both Rashba and Dresselhaus spin-orbit interaction using only energy conservation.…

Mesoscale and Nanoscale Physics · Physics 2021-04-06 Supriyo Bandyopadhyay , Marc Cahay , Jonathan Ludwick

We investigate spin transport by thermally excited spin waves in an antiferromagnetic insulator. Starting from a stochastic Landau-Lifshitz-Gilbert phenomenology, we obtain the out-of-equilibrium spin-wave properties. In linear response to…

Mesoscale and Nanoscale Physics · Physics 2018-11-05 Scott A. Bender , Hans Skarsvåg , Arne Brataas , Rembert A. Duine

We report the study of ballistic transport in normal metal/graphene/superconductor junctions in edge-contact geometry. While in the normal state, we have observed Fabry-P\'{e}rot resonances suggesting that charge carriers travel…

Mesoscale and Nanoscale Physics · Physics 2019-10-30 P. Pandey , R. Kraft , R. Krupke , D. Beckmann , R. Danneau

The recent development of superconducting spintronics has revealed the spin-triplet superconducting proximity effect from a spin-singlet superconductor into a spin-polarized normal metal. In addition recently superconducting junctions using…

Mesoscale and Nanoscale Physics · Physics 2023-09-25 Sadashige Matsuo , Kento Ueda , Shoji Baba , Hiroshi Kamata , Mizuki Tateno , Javad Shabani , Christopher J. Palmstrøm , Seigo Tarucha

We show that a supercurrent carried by spinless singlet Cooper pairs can induce a spin accumulation in the normal metal interlayer of a Josephson junction. This phenomenon occurs when a nonequilibrium spin-energy mode is excited in the…

Superconductivity · Physics 2020-10-07 Morten Amundsen , Jacob Linder

We study the spin and charge accumulation in junctions between a superconductor and a ferromagnet or a normal metal in the presence of a Zeeman magnetic field, when the junction is taken out of equilibrium by applying a voltage bias. We…

Mesoscale and Nanoscale Physics · Physics 2018-01-18 D. Chevallier , M. Trif , C. Dutreix , M. Guigou , C. H. L. Quay , M. Aprili , C. Bena

We theoretically investigate the supercurrent flow in a Josephson junction consisting of two spin-split superconductors combined by a normal metal weak link. The normal metal may be driven out of equilibrium, thus modifying the electron and…

Superconductivity · Physics 2025-08-06 Chi Sun , Jacob Linder

We investigate the transmission properties of a junction between a normal metal and a p-wave magnet in the ballistic regime. We introduce a two-dimensional square lattice that confirms the p-wave magnet criteria. The $\alpha$-vector of the…

Mesoscale and Nanoscale Physics · Physics 2025-01-07 Morteza Salehi , Ali Akbar Hedayati

The concept of a spin-current is a useful tool in understanding spin-transport in hybrid systems, but its very definition is problematic in systems where spin-orbit coupling effects are strong. In the absence of spin-dependent scattering,…

Mesoscale and Nanoscale Physics · Physics 2015-05-13 Jacob Linder , Takehito Yokoyama , Asle Sudbø
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