38 citations · 285 across the 31 of their papers we have counts for
15 papers · 1 filter
Impact of Device Resistances in the Performance of Graphene-based Terahertz Photodetectors
O. Castelló, Sofía M. López Baptista, K. Watanabe +6
In recent years, graphene Field-Effect-Transistors (GFETs) have demonstrated an outstanding potential for Terahertz (THz) photodetection due to their fast response and high-sensiti…
Phonon-mediated room-temperature quantum Hall transport in graphene
Daniel Vaquero, Vito Clericò, Michael Schmitz +14
The quantum Hall (QH) effect in two-dimensional electron systems (2DESs) is conventionally observed at liquid-helium temperatures, where lattice vibrations are strongly suppressed…
Effect of the external fields in high Chern number quantum anomalous Hall insulators
Yuriko Baba, Mario Amado, Enrique Diez +2
A quantum anomalous Hall state with high Chern number has so far been realized in multiplayer structures consisting of alternating magnetic and undoped topological insulator layers…
Generation and control of non-local chiral currents in graphene superlattices by orbital Hall effect
Juan Salvador-Sánchez, Luis M. Canonico, Ana Pérez-Rodríguez +15
Graphene-based superlattices offer a new materials playground to exploit and control a higher number of electronic degrees of freedom, such as charge, spin, or valley for disruptiv…
Fast response photogating in monolayer MoS2 phototransistors
Daniel Vaquero, Vito Clericò, Juan Salvador-Sánchez +6
Two-dimensional transition metal dichalcogenide (TMD) phototransistors have been object of intensive research during the last years due to their potential for photodetection. Photo…
Quantized electron transport through graphene nanoconstrictions
V. Clerico, J. A. Delgado-Notario, M. Saiz-Bretin +5
We study the quantization of Dirac fermions in lithographically defined graphene nanoconstrictions. We observe quantized conductance in single nanoconstrictions fabricated on top o…
Magneto-transport of graphene and quantum phase transitions in the quantum Hall regime
Mario Amado, Enrique Diez, Francesco Rossella +3
We studied the magneto-transport in SiO2 substrate-supported monolayer graphene and the quantum phase transitions that characterize the quantum Hall regime, using magnetic fields u…
Plateau insulator transition in graphene
M. Amado, E. Diez, D. López-Romero +5
The quantum Hall effect in a single-layer graphene sample is studied in strong magnetic fields up to 28 T. Our measurements reveal the existence of a metal- insulator transition fr…
Dicke effect in a quantum wire with side-coupled quantum dots
P. A. Orellana, F. Dominguez-Adame, E. Diez
A system of an array of side-coupled quantum-dots attached to a quantum wire is studied theoretically. Transport through the quantum wire is investigated by means of a noninteracti…
Two-Dimensional Electron Gas in InGaAs/InAlAs Quantum Wells
E. Diez, Y. P. Chen, S. Avesque +6
We designed and performed low temperature DC transport characterization studies on two-dimensional electron gases confined in lattice-matched InGaAs/InAl…
Symmetries of the Resistance of Mesoscopic Samples in the Quantum Hall Regime
E. Peled, Y. Chen, E. Diez +4
The symmetry properties of the resistance of mesoscopic samples in the quantum Hall regime are investigated. In addition to the reciprocity relation, our samples obey new symmetrie…
Near-Perfect Correlation of the Resistance Components of Mesoscopic Samples at the Quantum Hall Regime
E. Peled, D. Shahar, Y. Chen +3
We study the four-terminal resistance fluctuations of mesoscopic samples near the transition between the and the quantum Hall states. We observe near-perfect correlatio…
Transport in random quantum dot superlattices
I. Gomez, F. Dominguez-Adame, E. Diez +1
We present a novel model to calculate single-electron states in random quantum dot superlattices made of wide-gap semiconductors. The source of disorder comes from the random arran…
Coherent carrier dynamics in semiconductor superlattices
Enrique Diez, Rafael Gomez-Alcala, Francisco Dominguez-Adame +2
We investigate the coherent dynamics of carriers in semiconductor superlattices driven by ac-dc electric fields. We solve numerically the time-dependent effective-mass equation for…
Suppresion of Bloch oscillations by weak disorder in semiconductor superlattices
Enrique Diez, Francisco Dominguez-Adame, Angel Sanchez
We investigate the dephasing dynamics of Bloch oscillations in semiconductor superlattices by means of a very simple model including disorder and applied electric fields. A thoroug…