Zobrazeno 1 - 10
of 59
pro vyhledávání: '"J. Carlos Egues"'
Autor:
Denis R. Candido, Sigurdur I. Erlingsson, Hamed Gramizadeh, João Vitor I. Costa, Pirmin J. Weigele, Dominik M. Zumbühl, J. Carlos Egues
Publikováno v:
Physical Review Research, Vol 5, Iss 4, p 043297 (2023)
Shubnikov-de Haas (SdH) oscillations are the fingerprint of the Landau and Zeeman splitting level structure on the resistivity in presence of a moderate magnetic field before full quantization is manifest in the integer quantum Hall effect. These osc
Externí odkaz:
https://doaj.org/article/86279704728744fabd80195f143edc38
Autor:
Florian Dettwiler, Jiyong Fu, Shawn Mack, Pirmin J. Weigele, J. Carlos Egues, David D. Awschalom, Dominik M. Zumbühl
Publikováno v:
Physical Review X, Vol 7, Iss 3, p 031010 (2017)
The Rashba and Dresselhaus spin-orbit (SO) interactions in 2D electron gases act as effective magnetic fields with momentum-dependent directions, which cause spin decay as the spins undergo arbitrary precessions about these randomly oriented SO field
Externí odkaz:
https://doaj.org/article/be80d34366804e4ea072185cb6e71db2
Publikováno v:
Physical Review B. 107
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:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d9e1a3a7fc363bb300fcee62913da4f5
https://doi.org/10.1103/physrevb.107.045401
https://doi.org/10.1103/physrevb.107.045401
Publikováno v:
Spintronics XIII.
The boundary of topological insulators exhibits a pure spin current owing to the topological edge states. To exploit this edge spin current for spintronic purposes, a promising design is to make the topological insulator in contact with a metallic fe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::13845a90e852d35e523dadf6d0a5ac17
https://doi.org/10.1117/12.2566235
https://doi.org/10.1117/12.2566235
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
We study the transitions between ergodic and many-body localized phases in spin systems, subject to quenched disorder, including the Heisenberg chain and the central spin model. In both cases systems with common spin lengths $1/2$ and $1$ are investi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::ea6659015083b27e1928622c73b9fc29
Autor:
Pirmin Weigele, Florian Dettwiler, David D. Awschalom, Jiyong Fu, Dominik M. Zumbühl, Shawn Mack, J. Carlos Egues, D. C. Marinescu
Publikováno v:
Physical Review B
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
We exploit the high-symmetry spin state obtained for equal Rashba and linear Dresselhaus interactions to derive a closed-form expression for the weak localization magnetoconductivity -- the paradigmatic signature of spin-orbit coupling in quantum tra
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3fedfb6b1d32a8311e0524a4677edd8d
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
We present a Green's function formalism to investigate the topological properties of weakly interacting one-dimensional topological insulators, including the bulk-edge correspondence and the quantum criticality near topological phase transitions, and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5cb98e06d8cbda1c23b69f67e10bbbea
https://doi.org/10.1103/physrevb.100.075114
https://doi.org/10.1103/physrevb.100.075114
Publikováno v:
Physical Review Letters
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
We derive a closed-form expression for the weak localization (WL) corrections to the magnetoconductivity of a 2D electron system with arbitrary Rashba $\alpha$ and Dresselhaus $\beta$ (linear) and $\beta_3$ (cubic) spin-orbit interaction couplings, i
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4393db2e5a415755746abb53a25ba60
https://doi.org/10.1103/physrevlett.122.156601
https://doi.org/10.1103/physrevlett.122.156601
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
We present a paradoxical finding that, in the vicinity of a topological phase transition in a quantum anomalous Hall system (Chern insulator), topology nearly always (except when the system obeys charge-conjugation symmetry) results in a significant
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c5912d3c7211a731d24eb989a93602cb
https://doi.org/10.1103/physrevb.98.161111
https://doi.org/10.1103/physrevb.98.161111
Publikováno v:
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Universidade de São Paulo (USP)
instacron:USP
We investigate the electronic and transport properties of topological and trivial InAs$_{1-x}$Bi$_x$ quantum dots (QDs). By considering the rapid band gap change within valence band anticrossing theory for InAs$_{1-x}$Bi$_x$, we predicted that Bi-all
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::72ee4e65bae0b8c050a8661c4a26ad34
https://pubmed.ncbi.nlm.nih.gov/30608841
https://pubmed.ncbi.nlm.nih.gov/30608841