0000000000768436

AUTHOR

José Gabriel Rodrigo

showing 4 related works from this author

Scanning tunneling measurements of layers of superconducting 2H-TaSe2: Evidence for a zero-bias anomaly in single layers

2013

This work was supported by the EU (ERC Advanced Grant SPINMOL and COST MP-1201), the Spanish MINECO (Consolider-Ingenio in Molecular Nanoscience, CSD2007-00010 and projects FIS2011-23488, MAT2011-25046, MAT2011-22785 and ACI-2009-0905, co-financed by FEDER), by the Comunidad de Madrid (program Nanobiomagnet) and the Generalitat Valenciana (Programs Prometeo and ISIC-NANO)

SuperconductivityPhysicsCondensed matter physicsNanotechnology02 engineering and technology021001 nanoscience & nanotechnologyCondensed Matter Physics01 natural sciencesElectronic Optical and Magnetic Materials0103 physical sciencesZero biasAnomaly (physics)010306 general physics0210 nano-technologyQuantum tunnellingPhysical Review B
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Simplified feedback control system for scanning tunneling microscopy

2021

A Scanning Tunneling Microscope (STM) is one of the most important scanning probe tools available to study and manipulate matter at the nanoscale. In a STM, a tip is scanned on top of a surface with a separation of a few \AA. Often, the tunneling current between tip and sample is maintained constant by modifying the distance between the tip apex and the surface through a feedback mechanism acting on a piezoelectric transducer. This produces very detailed images of the electronic properties of the surface. The feedback mechanism is nearly always made using a digital processing circuit separate from the user computer. Here we discuss another approach, using a computer and data acquisition thr…

010302 applied physicsSuperconductivityPhysics - Instrumentation and DetectorsMaterials sciencebusiness.industrySerial communicationFOS: Physical sciencesWeyl semimetalPort (circuit theory)Instrumentation and Detectors (physics.ins-det)01 natural sciencesPiezoelectricityNoise (electronics)law.inventionCondensed Matter - Other Condensed MatterData acquisitionlawCondensed Matter::Superconductivity0103 physical sciencesOptoelectronicsScanning tunneling microscope010306 general physicsbusinessInstrumentationOther Condensed Matter (cond-mat.other)Review of Scientific Instruments
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Chiral charge order in the superconductor 2H-TaS(2)

2011

Artículo escrito por un elevado número de autores, solo se referencian el que aparece en primer lugar, el nombre del grupo de colaboración, si le hubiere, y los autores pertenecientes a la UAM

General Physics and AstronomyFOS: Physical sciences01 natural sciences010305 fluids & plasmaslaw.inventionSuperconductivity (cond-mat.supr-con)Condensed Matter - Strongly Correlated ElectronslawCondensed Matter::Superconductivity0103 physical sciences010306 general physicsSpectroscopyQuantum tunnellingComputingMilieux_MISCELLANEOUSPhysicsSuperconductivityCondensed matter physicsStrongly Correlated Electrons (cond-mat.str-el)Condensed Matter - SuperconductivityOrder (ring theory)FísicaCharge (physics)[PHYS.COND.CM-S]Physics [physics]/Condensed Matter [cond-mat]/Superconductivity [cond-mat.supr-con]Density of states[PHYS.COND.CM-MS]Physics [physics]/Condensed Matter [cond-mat]/Materials Science [cond-mat.mtrl-sci]Scanning tunneling microscopeCharge density wave
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Scanning tunneling measurements of layers of superconducting 2H-TaSe 2: Evidence for a zero-bias anomaly in single layers

2013

We report a characterization of surfaces of the dichalcogenide TaSe2 using scanning tunneling microscopy and spectroscopy at 150 mK. When the top layer has the 2H structure and the layer immediately below the 1T structure, we find a singular spatial dependence of the tunneling conductance below 1 K, changing from a zero-bias peak on top of Se atoms to a gap in between Se atoms. The zero-bias peak is additionally modulated by the commensurate 3a0 × 3a0 charge-density wave of 2H-TaSe2. Multilayers of 2H-TaSe2 show a spatially homogeneous superconducting gap with a critical Temperature also of 1 K. We discuss possible origins for the peculiar tunneling conductance in single layers

[PHYS.COND.CM-S]Physics [physics]/Condensed Matter [cond-mat]/Superconductivity [cond-mat.supr-con]FísicaPhysical Review B
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