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We investigate analytically and numerically the effects of disorder on the helical edge of the 2D topological insulator in the presence of the Zeeman field and superconductivity. Employing bosonization and a renormalization-group analysis,…

Strongly Correlated Electrons · Physics 2026-05-20 Zeinab Bakhshipour , Mir Vahid Hosseini

We study theoretically the interplay effect of Zeeman field and modulated spin-orbit coupling on topological properties of a one-dimensional dimerized lattice, known as Su-Schrieffer-Heeger model. We find that in the weak (strong) modulated…

Mesoscale and Nanoscale Physics · Physics 2016-09-15 Masoud Bahari , Mir Vahid Hosseini

We compare and contrast magneto-transport oscillations in the fully quantum (single-electron coherent) and classical limits for a simple but illustrative model. In particular, we study the induced magnetization and spin current in a…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 Martin Y. Veillette , Cristina Bena , Leon Balents

We study the effect of an external magnetic field in the Kondo regime of a double-quantum-dot system in which a strongly correlated dot (the "hanging dot") is coupled to a second, noninteracting dot that also bridges the gap between two…

Mesoscale and Nanoscale Physics · Physics 2013-06-13 Luis G. G. V. Dias da Silva , Edson Vernek , Kevin Ingersent , Nancy P. Sandler , Sergio E. Ulloa

Superconductor-semiconductor hybrids are useful for realizing the Josephson diode effect, where nonreciprocity in the supercurrents occurs due to the interplay of the Josephson effect and applied magnetic fields. These junctions can host…

Superconductivity · Physics 2025-10-20 Sayan Mondal , Pei-Hao Fu , Jorge Cayao

We study tunneling currents in a model consisting of two non-unitary ferromagnetic spin-triplet superconductors separated by a thin insulating layer. We find a novel interplay between ferromagnetism and superconductivity, manifested in the…

Superconductivity · Physics 2007-05-23 M. S. Gronsleth , J. Linder , J. -M. Borven , A. Sudbo

We study tunneling currents in a model consisting of two non-unitary ferromagnetic spin-triplet superconductors separated by a thin insulating layer. We find a novel interplay between ferromagnetism and superconductivity, manifested in the…

Superconductivity · Physics 2007-05-23 M. Gronsleth , J. Linder , J. -M-Borven , A. Sudbo

We discuss an experiment in which two magnetic insulators that both show a field-induced magnetic-ordering transition are weakly coupled to one another and are placed into an ex- ternal magnetic field. If the respective magnetic states can…

Strongly Correlated Electrons · Physics 2012-12-18 Andreas Schilling , Henrik Grundmann

We derive the theoretical and numerical framework for investigating nonequilibrium properties of spin-orbit coupled wires with Zeeman splitting proximized by a superconductor in the non-linear diffusive regime. We demonstrate that the…

Superconductivity · Physics 2017-10-17 Sol H. Jacobsen , Jacob Linder

We propose a mechanism which can generate supercurrents in spin-orbit coupled superconductors with charged magnetic inclusions. The basic idea is that through spin-orbit interaction, the in-plane electric field near the edge of each…

Superconductivity · Physics 2025-06-23 Benjamin A. Levitan , Yuval Oreg , Erez Berg

Spin-orbit coupling is key to all-electrical control of quantum-dot spin qubits, and is frequently stronger for holes than for electrons. Here we investigate Pauli spin blockade for two heavy holes in a gated double quantum dot in an…

Mesoscale and Nanoscale Physics · Physics 2017-05-31 Jo-Tzu Hung , Elizabeth Marcellina , Bin Wang , Alexander R. Hamilton , Dimitrie Culcer

We study the patterns at which the current flow stabilizes in a 1D superconducting wire, for various experimentally reasonable boundary conditions, for small fixed current densities and temperatures close to $T_c$. We pay special attention…

Superconductivity · Physics 2015-08-26 Jorge Berger

Superconductivity is commonly destroyed by a magnetic field due to orbital or Zeeman-induced pair breaking. Surprisingly, the spin-valley locking in a two-dimensional superconductor with spin-orbit interaction makes the superconducting…

Superconductivity · Physics 2021-06-11 Gaomin Tang , Christoph Bruder , Wolfgang Belzig

We explore the possibilities for spin-singlet superconductivity in newly discovered altermagnets. Investigating $d$-wave altermagnets, we show that finite-momentum superconductivity can easily emerge in altermagnets even though they have no…

Superconductivity · Physics 2024-03-29 Debmalya Chakraborty , Annica M. Black-Schaffer

We theoretically consider the effect of a spatially periodic modulation of the superconducting order parameter on the formation of Majorana fermions induced by a one-dimensional system with magnetic impurities brought into close proximity…

Mesoscale and Nanoscale Physics · Physics 2016-04-19 Silas Hoffman , Jelena Klinovaja , Daniel Loss

We theoretically study the superconducting diode effect in a three-terminal Josephson junction. The diode effect in superconducting systems is typically related to the presence of a difference in the critical currents for currents flowing…

Superconductivity · Physics 2024-08-07 Jorge Huamani Correa , Michal P. Nowak

Phase structure of the (2+1)-dimensional model with four-fermion interaction of spin-1/2 quasiparticles (electrons) both in the fermion-antifermion (or chiral) and fermion-fermion (or superconducting) channels is considered at nonzero…

High Energy Physics - Theory · Physics 2015-06-12 K. G. Klimenko , R. N. Zhokhov , V. Ch. Zhukovsky

One of the promising platforms for creating Majorana bound states is a hybrid nanostructure consisting of a semiconducting nanowire covered by a superconductor. We analyze the previously disregarded role of electrostatic interaction in…

Mesoscale and Nanoscale Physics · Physics 2016-03-08 A. Vuik , D. Eeltink , A. R. Akhmerov , M. Wimmer

We self-consistently calculate the supercurrent diode effect from microscopic models of quasi one- and two-dimensional clean superconductors with spin-orbit coupling under external Zeeman fields, and show that the Edelstein effect is…

Superconductivity · Physics 2023-11-21 Noah F. Q. Yuan

We study the coherent dynamic interaction of a time-dependent spin-splitting field with the homogeneous superconducting order parameter $\Delta(t)$ mediated by spin-orbit coupling using the time-dependent Bogoliubov-de Gennes theory. In the…

Superconductivity · Physics 2023-10-03 V. Plastovets , A. S. Mel'nikov , A. I. Buzdin