Zobrazeno 1 - 10
of 26
pro vyhledávání: '"Penteado, P. H."'
Autor:
Campos, Warlley H., Penteado, Poliana H., Zanon, Julian, Junior, Paulo E. Faria, Candido, Denis R., Egues, J. Carlos
Dual topological insulators (DTIs) are simultaneously protected by time-reversal and crystal symmetries, representing advantageous alternatives to conventional topological insulators. By combining ab initio calculations and the $\mathbf{k}\cdot\mathb
Externí odkaz:
http://arxiv.org/abs/2405.15869
Publikováno v:
Phys. Rev. B 110, 014504 (2024)
We propose a protocol based only on local conductance measurements for distinguishing trivial from topological phases in realistic three-terminal superconducting nanowires coupled to normal leads, capable of hosting Majorana zero modes (MZMs). By usi
Externí odkaz:
http://arxiv.org/abs/2303.01867
Publikováno v:
Phys. Rev. B 107, 045401 (2023)
When normal metals (NMs) are attached to topological insulators or topological superconductors, it is conceivable that the quantum states in these finite adjacent materials can intermix. In this case -- and because the NM usually does not possess the
Externí odkaz:
http://arxiv.org/abs/2205.03331
Autor:
Fu, J. Y., Penteado, P. H., Candido, D. R., Ferreira, G. J., Pires, D. P., Bernardes, E., Egues, J. C.
Publikováno v:
Phys. Rev. B 101, 134416 (2020)
Effective spin-orbit (SO) Hamiltonians for conduction electrons in wurtzite heterostructures are lacking in the literature, in contrast to zincblende structures. Here we address this issue by deriving such an effective Hamiltonian valid for quantum w
Externí odkaz:
http://arxiv.org/abs/1911.03638
Akademický článek
Tento výsledek nelze pro nepřihlášené uživatele zobrazit.
K zobrazení výsledku je třeba se přihlásit.
K zobrazení výsledku je třeba se přihlásit.
Publikováno v:
Phys. Rev. B 98, 165120 (2018)
We investigate the ballistic zitterbewegung dynamics and the Landau-Zener tunneling between edge and bulk states of wave packets in two-dimensional topological insulators. In bulk, we use the Ehrenfest theorem to show that an external in-plane electr
Externí odkaz:
http://arxiv.org/abs/1807.07390
Publikováno v:
Phys. Rev. Lett. 117, 226401 (2016)
A persistent spin helix (PSH) is a robust helical spin-density pattern arising in disordered 2D electron gases with Rashba $\alpha$ and Dresselhaus $\beta$ spin-orbit (SO) tuned couplings, i.e., $\alpha=\pm\beta$. Here we investigate the emergence of
Externí odkaz:
http://arxiv.org/abs/1507.00811
Publikováno v:
Phys. Rev. B 89, 165314 (2014)
We investigate quantum transport through a quantum dot connected to source and drain leads and side-coupled to a topological superconducting nanowire (Kitaev chain) sustaining Majorana end modes. Using a recursive Green's function approach, we determ
Externí odkaz:
http://arxiv.org/abs/1308.0092
Publikováno v:
Semicond. Sci. Technol. 27 (2012) 124007
The two-dimensional topological insulating phase has been experimentally discovered in HgTe quantum wells (QWs). The low-energy physics of two-dimensional topological insulators (TIs) is described by the Bernevig-Hughes-Zhang (BHZ) model, where the r
Externí odkaz:
http://arxiv.org/abs/1209.2313
Publikováno v:
Phys. Rev. B 84, 125439 (2011)
We theoretically investigate spin-polarized transport in a system composed of a ferromagnetic Scanning Tunneling Microscope (STM) tip coupled to an adsorbed atom (adatom) on a host surface. Electrons can tunnel directly from the tip to the surface or
Externí odkaz:
http://arxiv.org/abs/1106.4331