Topological superconductivity and Majorana states in low-dimensional systems

VV Val'kov, MS Shustin, SV Aksenov… - Physics …, 2022‏ - iopscience.iop.org
We discuss the properties of topologically nontrivial superconducting phases and the
conditions for their realization in condensed matter, the criteria for the appearance of …

Effective spin-orbit interaction Hamiltonian for quasi-one-dimensional quantum rings

K Shakouri, B Szafran, M Esmaeilzadeh… - Physical Review B …, 2012‏ - APS
The effective Hamiltonian for an electron in a quasi-one-dimensional quantum ring in the
presence of spin-orbit interactions is derived. We demonstrate that, when both coupling …

Топологическая сверхпроводимость и майорановские состояния в низкоразмерных системах

ВВ Вальков, МС Шустин, СВ Аксенов… - Успехи физических …, 2022‏ - ufn.ru
Обсуждаются свойства сверхпроводящих фаз с нетривиальной топологией и условия
их реализации в конденсированных средах, критерии появления в твёрдых телах …

Collapse of the Fano resonance caused by the nonlocality of the Majorana state

SV Aksenov, MY Kagan - JETP Letters, 2020‏ - Springer
Owing to the nonlocal character of the Majorana state, the corresponding excitations are of
great interest. It is demonstrated that the direct consequence of such nonlocality is the …

Valley-resolved Fano resonance in monolayer transition metal dichalcogenide nanoribbons with attached stubs

HY Mu, NW Wang, YN Du, XT An, JJ Liu - Physical Review B, 2022‏ - APS
Besides spin, the valley degree of freedom is also a promising candidate as a carrier of
information. Spintronics has come a long way, and spin modulation can be realized by …

Spin Fano resonances and control in two-dimensional mesoscopic transport

CR Liu, L Huang, H Luo, YC Lai - Physical Review Applied, 2020‏ - APS
In electronic transport through mesoscopic systems, the various resonances in quantities
such as conductance and scattering cross sections are characterized by the universal Fano …

Fano resonances in hexagonal zigzag graphene rings under external magnetic flux

D Faria, R Carrillo-Bastos, N Sandler… - Journal of Physics …, 2015‏ - iopscience.iop.org
We study transport properties of hexagonal zigzag graphene quantum rings connected to
semi-infinite nanoribbons. Open two-fold symmetric structures support localized states that …

Spin current source based on a quantum point contact with local spin-orbit interaction

MP Nowak, B Szafran - Applied Physics Letters, 2013‏ - pubs.aip.org
Proposal for construction of a source of spin-polarized current based on quantum point
contact (QPC) with local spin-orbit interaction is presented. We show that spin-orbit …

Topological insulator ring with magnetic impurities

A Vezvaee, A Russo, SE Economou, E Barnes - Physical Review B, 2018‏ - APS
Topological insulators exhibit gapless edge or surface states that are topologically protected
by time-reversal symmetry. However, several promising candidates for topologically …

Majorana Modes and Fano Resonances in Aharonov–Bohm Ring with Topologically Nontrivial Superconducting Bridge

SV Aksenov, MY Kagan - Journal of Low Temperature Physics, 2024‏ - Springer
We study different resonances (first of all of the Fano type) in the interference device formed
by the Aharonov–Bohm ring with superconducting (SC) wire in the topologically nontrivial …