Results 51 to 60 of about 58,719 (283)
Amplifier for scanning tunneling microscopy at MHz frequencies
, 2018 Conventional scanning tunneling microscopy (STM) is limited to a bandwidth of circa 1kHz around DC. Here, we develop, build and test a novel amplifier circuit capable of measuring the tunneling current in the MHz regime while simultaneously performing ...
Allan, M. P. +6 more
core +4 more sources
MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance
Advanced Functional Materials, EarlyView.Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley +1 more source
Imaging isodensity contours of molecular states with STM
New Journal of Physics, 2017 We present an improved way for imaging the density of states of a sample with a scanning tunneling microscope, which consists in mapping the surface topography while keeping the differential conductance (d I /d V ) constant.
Gaël Reecht +5 more
doaj +1 more source
A time-domain phase diagram of metastable states in a charge ordered quantum material
Nature Communications, 2021 Tracking the evolution of non-equilibrium phases requires measurements over a wide range of timescales. Here, using a combination of femtosecond spectroscopy and scanning tunneling microscopy, the authors map out a temporal phase diagram of metastable ...
Jan Ravnik +7 more
doaj +1 more source
Advanced Functional Materials, EarlyView.Ferroelectricity in thin HfO2‐based films offers great possibilities for next‐generation neuromorphic memory devices. There, the response to subcoercive voltage signals is driven by the movement of mobile interfaces and their interaction with crystal defects – a yet rather unexplored aspect, which we shed light on and gain new insights into the complex
Maximilian T. Becker +11 more
wiley +1 more source
Terthiophene on Au(111): A scanning tunneling microscopy and spectroscopy study
Beilstein Journal of Nanotechnology, 2011 Terthiophene (3T) molecules adsorbed on herringbone (HB) reconstructed Au(111) surfaces in the low coverage regime were investigated by means of low-temperature scanning tunneling microscopy (STM) and spectroscopy (STS) under ultra-high vacuum conditions.
Berndt Koslowski +5 more
doaj +1 more source
Electronic structure and superconductivity of the non-centrosymmetric Sn4As3
New Journal of Physics, 2020 In a superconductor that lacks inversion symmetry, the spatial part of the Cooper pair wave function has a reduced symmetry, allowing for the mixing of spin-singlet and spin-triplet Cooper pairing channels and thus providing a pathway to a non-trivial ...
C A Marques +11 more
doaj +1 more source
Scanning Tunneling Spectroscopy on the novel superconductor CaC6
, 2006 We present scanning tunneling microscopy and spectroscopy of the newly discovered superconductor CaC$_6$. The tunneling conductance spectra, measured between 3 K and 15 K, show a clear superconducting gap in the quasiparticle density of states.
Bergeal, N. +9 more
core +3 more sources
Scanning tunneling spectroscopy on single crystal MgB2 [PDF]
Physica C: Superconductivity, 2003 12 pages, 7 figs.
Eskildsen, M. R. +7 more
openaire +2 more sources
Advanced Functional Materials, EarlyView.ABSTRACT Metal oxide (MOx)‐based NO2 gas sensors typically require high temperatures or ultraviolet light, limiting their practical use. To enable visible‐light activation at room temperature, efficient and stable photosensitizers should be integrated with nanostructured MOx hosts.
Yeonji Yuk +10 more
wiley +1 more source