108 citations · 410 across the 28 of their papers we have counts for
12 papers · 1 filter
Robust Edge States from Band Topology in a Damped One-dimensional Magnonic Crystal
Kwangyul Hu, Denis R. Candido, Michael E. Flatté
The presence or absence of topologically-produced edge states of a crystal are robust to disorder; their stability in the presence of decay is less clear. For topologically nontriv…
Signature of non-trivial band topology in Shubnikov--de Haas oscillations
Denis R. Candido, Sigurdur I. Erlingsson, João Vitor I. Costa +1
We investigate the Shubnikov-de Haas (SdH) magneto-oscillations in the resistivity of two-dimensional topological insulators (TIs). Within the Bernevig-Hughes-Zhang (BHZ) model for…
Dual topological insulator with mirror symmetry protected helical edge states
Warlley H. Campos, Poliana H. Penteado, Julian Zanon +3
Dual topological insulators (DTIs) are simultaneously protected by time-reversal and crystal symmetries, representing advantageous alternatives to conventional topological insulato…
Efficient method to calculate energy spectra for analysing magneto-oscillations
Hamed Gramizadeh, Denis R. Candido, Andrei Manolescu +2
Magneto-oscillations in two-dimensional systems with spin-orbit interaction are typically characterized by fast Shubnikov-de~Haas (SdH) oscillations and slower spin-orbit-related b…
Quantum oscillations in 2D electron gases with spin-orbit and Zeeman interactions
Denis R. Candido, Sigurdur I. Erlingsson, Hamed Gramizadeh +4
Shubnikov-de Haas (SdH) oscillations have served as a paradigmatic experimental probe and tool for extracting key semiconductor parameters such as carrier density, effective mass,…
Engineering topological phases in triple HgTe/CdTe quantum wells
G. J. Ferreira, D. R. Candido, F. G. G. Hernandez +4
Quantum wells formed by layers of HgTe between HgCdTe barriers lead to two-dimensional (2D) topological insulators, as predicted by the BHZ model. Here, we theoreticall…
Theory of spin center sensing of diffusion
Denis R. Candido, Michael E. Flatté
Surface electric (charge) noise influences spin defects due to fluctuation of the surface charge density and also the electrostatic potential at the crystal surface. Surprisingly,…
Suppression of the optical linewidth and spin decoherence of a quantum spin center in a diode
Denis R. Candido, Michael E. Flatté
We present a quantitative theory of the suppression of the optical linewidth due to charge fluctuation noise in a diode, recently observed in Anderson et al., Science…
Predicted strong coupling of solid-state spins via a single magnon mode
Denis R. Candido, Gregory D. Fuchs, Ezekiel Johnston-Halperin +1
We propose an approach to realize a hybrid quantum system composed of a diamond nitrogen-vacancy (NV) center spin coupled to a magnon mode of the low-damping, low-moment organic fe…
Spin-orbit coupling in wurtzite quantum wells
J. Y. Fu, P. H. Penteado, D. R. Candido +4
Effective spin-orbit (SO) Hamiltonians for conduction electrons in wurtzite heterostructures are lacking in the literature, in contrast to zincblende structures. Here we address th…
Paradoxical extension of the edge states across the topological phase transition due to emergent approximate chiral symmetry in a quantum anomalous Hall system
Denis R. Candido, Maxim Kharitonov, J. Carlos Egues +1
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 t…
Blurring the boundaries between topological and non-topological phenomena in dots
Denis R. Candido, M. E. Flatté, J. Carlos Egues
We investigate the electronic and transport properties of topological and trivial InAsBi quantum dots (QDs). By considering the rapid band gap change within valence ban…