Zobrazeno 1 - 10
of 15 943
pro vyhledávání: '"Mélé, P."'
Autor:
Yarmohammadi, Mohsen, Koshkaki, Saeed Rahmanian, Berakdar, Jamal, Bukov, Marin, Kolodrubetz, Michael H.
Quantum spin Hall insulators (QSHIs) are promising for spintronics, leveraging strong spin-orbit coupling for efficient spin manipulation via electrical and optical methods, with potential applications in memory storage, quantum computing, and spin-b
Externí odkaz:
http://arxiv.org/abs/2410.10764
Autor:
Roura-Bas, P., Aligia, A. A.
It is well known that quantized topological charge pumping takes place in the half filled Rice-Mele chain performing a closed cycle in parameter space. We extend previous studies to the case of charge and heat transport at arbitrary filling and tempe
Externí odkaz:
http://arxiv.org/abs/2411.15863
Autor:
Mandal, Ipsita
We address the nature of the Thouless charge-pumping for a non-Hermitian (NH) generalization of the one-dimensional (1d) Rice-Mele model, considering a variety which allows closed-form analytical solutions for the eigensystems. The two-band system is
Externí odkaz:
http://arxiv.org/abs/2411.00549
Recent experiment on MoTe$_2$-WTe$_2$ twisted bi-layer demonstrated physics of Kane-Mele (KM) as well as Haldane models. Although topological properties of KM model has been studied extensively, effects of interaction are still less explored beyond h
Externí odkaz:
http://arxiv.org/abs/2410.23221
The Rice-Mele model consists of a one-dimensional lattice with two sublattice sites in each unit cell subjected to a staggered sublattice potential. The onsite potential constitutes a mass term that breaks chiral symmetry. In this paper, we show that
Externí odkaz:
http://arxiv.org/abs/2410.14277
Autor:
Júnior, Sebastião dos Anjos Sousa, Ferraz, Marcus V. de S., de Lima, José P., Cysne, Tarik P.
In this work, we use the local spin Chern marker (LSCM) recently introduced by Ba\`{u} and Marrazzo [Phys. Rev. B 110, 054203 (2024)] to analyze the topology of the ground-state electronic wave functions in a finite honeycomb lattice flake described
Externí odkaz:
http://arxiv.org/abs/2409.02319
We investigate how the in-plane Zeeman field and the Hubbard interaction can jointly affect the topological states in the Kane-Mele-Hubbard model. At low Zeeman field, the projector quantum Monte Carlo (PQMC) simulations demonstrate Mott transitions
Externí odkaz:
http://arxiv.org/abs/2408.09492
We propose that flat bands and van Hove singularities near the magic angle can be stabilized against angle disorder in the twisted Kane-Mele model. With continuum model and maximally localized Wannier function approaches, we identify a quadratic disp
Externí odkaz:
http://arxiv.org/abs/2408.06866
The Kane-Mele model has been modified to achieve versatile topological phases. Previous work [Phys. Rev. Lett. 120, 156402 (2018)] introduced a staggered intrinsic spin-orbit coupling effect to generate pseudohelical edge states, with Rashba spin-orb
Externí odkaz:
http://arxiv.org/abs/2408.04328
We investigate the magnetic and conduction properties of Kane-Mele Hubbard model in quasi one-dimensional honeycomb ribbon systems at half-filling by varying the strength of both spin-orbit interaction and on-site Coulomb correlation term. We use the
Externí odkaz:
http://arxiv.org/abs/2408.15540