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In two-dimensional system with Rashba spin-orbit coupling, it is well-known that superconductivity can have mixed spin-singlet and -triplet parity, and the $\boldsymbol{d}$-vector of spin-triplet pairing is parallel to…

Superconductivity · Physics 2024-10-21 Ran Wang , Jiayang Li , Xinliang Huang , Lichuan Wang , Rui Song , Ning Hao

Vortex lattice states occurring in noncentrosymmetric superconductors with the spin-orbit coupling of Rashba type under a magnetic field parallel to the symmetry plane are examined by assuming the $s$-wave pairing case and in an approach…

Superconductivity · Physics 2015-10-14 Yuichiro Dan , Ryusuke Ikeda

Intrinsic Rashba spin-orbital coupling (SOC) can exist in centrosymmetric materials with local inversion symmetry breaking. Here we show that such a SOC can induce topological superconductivity together with an in-plane Zeeman field in…

Superconductivity · Physics 2024-09-05 Jiong Mei , Kun Jiang , Shengshan Qin , Jiangping Hu

We consider a Rashba spin-orbit coupled nanowire with anisotropic spin-singlet superconducting pairing and time-reversal-invariant symmetry. We explore the evolution of the topological superconducting phases of this system due to geometric…

Superconductivity · Physics 2020-03-11 Gianluca Francica , Mario Cuoco , Paola Gentile

Associated with spin-orbit coupling (SOC) and inversion symmetry breaking, Rashba spin polarization opens a new avenue for spintronic applications that was previously limited to ordinary magnets. However, spin polarization effects in actual…

Computational Physics · Physics 2016-10-12 Qihang Liu , Xiuwen Zhang , J. A. Waugh , D. S. Dessau , Alex Zunger

By using a molecular beam epitaxy technique, we fabricate a new type of superconducting superlattices with controlled atomic layer thicknesses of alternating blocks between heavy fermion superconductor CeCoIn_5, which exhibits a strong…

The theory of quasiparticle interference (QPI) for non-centrosymmetric (NCS) superconductors with Rashba spin-orbit coupling is developed using T-matrix theory in Born approximation. We show that qualitatively new effects in the QPI pattern…

Superconductivity · Physics 2013-07-03 Alireza Akbari , Peter Thalmeier

We theoretically study a possible topological superconductivity in the interacting two layers of Rashba systems, which can be fabricated by the hetero-structures of semiconductors and oxides. The hybridization, which induces the gap in the…

Superconductivity · Physics 2012-04-09 Sho Nakosai , Yukio Tanaka , Naoto Nagaosa

Inversion and time reversal are essential symmetries for the structure of Cooper pairs in superconductors. The loss of one or both leads to modifications to this structure and can change the properties of the superconducting phases in…

Superconductivity · Physics 2023-03-21 Mark H Fischer , Manfred Sigrist , Daniel F Agterberg , Youichi Yanase

The Rashba effect as an electrically tunable spin-orbit interaction is the base for a multitude of possible applications such as spin filters, spin transistors, and quantum computing using Majorana states in nanowires. Moreover, this…

Mesoscale and Nanoscale Physics · Physics 2016-10-13 Jan Raphael Bindel , Mike Pezzotta , Jascha Ulrich , Marcus Liebmann , Eugene Sherman , Markus Morgenstern

The generally accepted view that spin polarization is induced by the asymmetry of the global crystal space group has limited the search for spintronics [1] materials to non-centrosymmetric materials. Recently it has been suggested that spin…

Motivated by the recent findings of unconventional superconductivity in $\mathrm{CoSi_2 / TiSi_2}$ heterostructures, we study the effect of interface induced Rashba spin orbit coupling on the conductance of a three terminal "T" shape…

Superconductivity · Physics 2021-05-18 Vivek Mishra , Yu Li , Fu-Chun Zhang , Stefan Kirchner

We study a proximity junction between a conventional s-wave superconductor and a conductor with Rashba spin-orbit coupling, with a specific focus on the spin structure of the induced pairing amplitude. We find that spin-triplet pairing…

Mesoscale and Nanoscale Physics · Physics 2015-10-23 Christopher R. Reeg , Dmitrii L. Maslov

Motivated by the recent discovery of a possible field-mediated parity switch within the superconducting state of CeRh2As2 [Khim et al., Science 373, 1012 (2021)], we thoroughly investigate the dependence of the superconducting state of a…

Superconductivity · Physics 2024-05-16 B. K. Nally , P. M. R. Brydon

We investigate the physical mechanisms for achieving an electrical control of conventional spin-singlet superconductivity in thin films by focusing on the role of surface orbital polarization. Assuming a multi-orbital description of the…

Superconductivity · Physics 2020-09-18 Maria Teresa Mercaldo , Paolo Solinas , Francesco Giazotto , Mario Cuoco

We study spectroscopic properties of ferromagnetic-superconductor heterostructures with strong spin-orbit coupling of the Rashba type and in the presence of exchange fields. The superconducting layer (film) experiences both an intrinsic…

Superconductivity · Physics 2014-03-28 P. M. Svetlichnyy , Z. Jiang , C. A. R. Sá de Melo

Manipulating the electron spin with the aid of spin-orbit coupling (SOC) is an indispensable element of spintronics. Electrostatically gating a material with strong SOC results in an effective magnetic field which can in turn be used to…

We study how the Rashba spin-orbit interaction influences unconventional superconductivity in a two dimensional electron gas partially spin-polarized by a magnetic field. Somewhat surprisingly, we find that for all field orientations, only…

Superconductivity · Physics 2016-07-01 Ethan Lake , Caleb Webb , D. A. Pesin , O. A. Starykh

The complex oxide heterostructures such as LaAlO3/SrTiO3 (LAO/STO) interface are paradigmatic platforms to explore emerging multi-degrees of freedom coupling and the associated exotic phenomena. In this study, we reveal the effects of…

Materials Science · Physics 2021-11-10 Weilong Kong , Tong Yang , Jun Zhou , Yong Zheng Luo , Jingsheng Chen , Lei Shen , Yong Jiang , Yuan Ping Feng , Ming Yang

The non-centrosymmetric superconductors Li2Pd3B and Li2Pt3B show different superconducting properties despite having the same crystal symmetry. Motivated by experimental results, we investigate the spin susceptibility of non-centrosymmetric…

Superconductivity · Physics 2013-07-10 Daisuke Maruyama , Youichi Yanase