Zobrazeno 1 - 10
of 194
pro vyhledávání: '"Stanescu, Tudor"'
Disorder effects in hybrid semiconductor-superconductor (SM-SC) nanowires, widely recognized as the main obstacle to realizing stable Majorana zero modes (MZMs) in these structures, have been systematically investigated theoretically in recent years.
Externí odkaz:
http://arxiv.org/abs/2405.12192
We investigate theoretically a one-dimensional semiconductor-superconductor (SM-SC) heterostructure with Rashba spin-orbit coupling and parallel Zeeman field in the presence of disorder generated by random charged impurities and identify the optimal
Externí odkaz:
http://arxiv.org/abs/2402.18549
Publikováno v:
Phys. Rev. B 108, 085416 (2023)
We consider theoretically the physics of bulk topological superconductivity accompanied by boundary non-Abelian Majorana zero modes in semiconductor-superconductor (SM-SC) hybrid systems consisting of finite wires in the presence of correlated disord
Externí odkaz:
http://arxiv.org/abs/2305.07007
Autor:
Stanescu, Tudor D., Sarma, Sankar Das
Publikováno v:
Phys. Rev. B 106, 085429 (2022)
We investigate the effects of disorder characterising a superconducting thin film on the proximity-induced superconductivity generated by the film (in, e.g., a semiconductor) based on the exact numerical analysis of a three-dimensional microscopic mo
Externí odkaz:
http://arxiv.org/abs/2206.13526
Publikováno v:
Phys. Rev. Materials 5, 124602 (2021)
We use the available transport measurements in the literature to develop a dataset for the likely amount of disorder in semiconductor (InAs and InSb) materials which are used in fabricating the superconductor-semiconductor nanowire samples in the exp
Externí odkaz:
http://arxiv.org/abs/2109.00007
Publikováno v:
Phys. Rev. B 104, 155428 (2021)
We propose a semiconductor-superconductor hybrid device for realizing topological superconductivity and Majorana zero modes consisting of a planar Josephson junction structure with periodically modulated junction width. By performing a numerical anal
Externí odkaz:
http://arxiv.org/abs/2106.05302
Focusing on the implications of recent experiments on Majorana zero modes in semiconductor-superconductor (SM-SC) heterostructures, we critically examine the quantization of the zero-bias differential conductance as a possible unambiguous signature o
Externí odkaz:
http://arxiv.org/abs/2105.06469
Publikováno v:
Phys. Rev. Applied 16, 054053 (2021)
We address an outstanding problem that represents a critical roadblock in the development of the Majorana-based topological qubit using semiconductor-superconductor hybrid structures: the quantitative characterization of disorder effects generated by
Externí odkaz:
http://arxiv.org/abs/2103.06880
Autor:
Woods, Benjamin D., Stanescu, Tudor D.
We investigate the impact of electrostatics on the proximity effect between a magnetic insulator and a semiconductor wire in semiconductor-superconductor-magnetic insulator hybrid structures. By performing self-consistent Schr$\ddot{\rm o}$dinger-Poi
Externí odkaz:
http://arxiv.org/abs/2011.01933