Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Adak, Vivekananda"'
Publikováno v:
Physical Review B 110, 155424 (2024)
We investigate helical edge states (HES) emerging at the composite domain wall of spin and pseudo-spin degrees of freedom in a 2-D bulk governed by the Bernevig-Hughes-Zhang Hamiltonian which underwent quantum spin Hall to anomalous Hall transition.
Externí odkaz:
http://arxiv.org/abs/2402.01871
Publikováno v:
Phys. Rev. B 109, L220504 (2024)
Optimal choice of spin polarization enables electron injection into the helical edge state at a precise position, despite the uncertainty principle, permitting access to specific nonlocal Green's functions. We show, within 1D effective description, t
Externí odkaz:
http://arxiv.org/abs/2311.14297
Publikováno v:
New Journal of Physics, Volume 26, February 2024
Volkov-Pankratov (VP) states are a family of sub-gap states which appear at the smooth interface/domain wall between topologically distinct gapped states. We study the emergence of such states in the edge spectrum of a quantum spin Hall system subjec
Externí odkaz:
http://arxiv.org/abs/2208.13799
Autor:
Adak, Vivekananda, Mukhopadhyay, Aabir, De, Suman Jyoti, Khanna, Udit, Rao, Sumathi, Das, Sourin
A hybrid setup consisting of a superconductivity-proximitized quantum spin Hall (QSH) insulator and a quantum anomalous Hall (QAH) insulator is proposed for chiral injection of electrons into the Majorana bound state (MBS). An unexplored region of th
Externí odkaz:
http://arxiv.org/abs/2106.04596
Publikováno v:
Physica E: Low-dimensional Systems and Nanostructures, 139 , 115125 (2022)
Theoretical models of a spin-polarized voltage probe (SPVP) tunnel-coupled to the helical edge states (HES) of a quantum spin Hall system (QSHS) are studied. Our first model of the SPVP comprises $N_{P}$ spin-polarized modes (subprobes), each of whic
Externí odkaz:
http://arxiv.org/abs/2104.00667
Publikováno v:
Phys. Rev. B 102, 035423 (2020)
Topological protection of edge state in quantum spin Hall systems relies only on time-reversal symmetry. Hence, S z conservation on the edge can be relaxed which can have an interferometric manifestation in terms of spin Berry phase. Primarily it cou
Externí odkaz:
http://arxiv.org/abs/1905.02801
Publikováno v:
In Physica E: Low-dimensional Systems and Nanostructures May 2022 139
Publikováno v:
New Journal of Physics; Feb2024, Vol. 26 Issue 2, p1-19, 19p