Results 21 to 30 of about 58,719 (283)

The Art of Catching and Probing Single Molecules

open access: yesCHIMIA, 2012
Probing the electronic properties of an individual molecule is a far from trivial task. In order to measure, for instance, the conductance of a single molecule, the molecule must be contacted by two nanoscopic electrodes.
Harold J. W. Zandvliet
doaj   +1 more source

Scanning Tunneling Microscopy and Spectroscopy of Supported Nanostructures

open access: yesCHIMIA, 2012
Recent advances in low-temperature scanning tunneling microscopy (STM) and spectroscopy (STS) have provided new opportunities for the investigation of the local geometric, electronic, magnetic, and optical properties of nanostructures.
Wolf-Dieter Schneider
doaj   +1 more source

Use of PtC Nanotips for Low-Voltage Quantum Tunneling Applications

open access: yesMicromachines, 2022
The use of focused ion and focused electron beam (FIB/FEB) technology permits the fabrication of micro- and nanometer scale geometries. Therefore, FIB/FEB technology is a favorable technique for preparing TEM lamellae, nanocontacts, or nanowires and ...
Michael Haub   +3 more
doaj   +1 more source

Combined I(V) and dI(V)/dz scanning tunneling spectroscopy

open access: yesAIP Advances, 2018
We present a method to simultaneously record I(V) and dI(V)dz spectra in a scanning tunneling microscopy measurement, where I, V and z refer to the tunnel current, sample bias and tip-substrate separation, respectively.
Carolien Castenmiller   +4 more
doaj   +1 more source

Scanning tunneling spectroscopy of subsurface Ag and Ge impurities in copper

open access: yesNew Journal of Physics, 2021
We investigate single Ge and Ag impurities buried below a Cu(100) surface using low temperature scanning tunneling microscopy. The interference patterns in the local density of states are surface scattering signatures of the bulk impurities, which result
Thomas Kotzott   +5 more
doaj   +1 more source

Spectroscopic signature of the Stark-shifted Tamm-type surface state of La(0001)

open access: yesNew Journal of Physics, 2020
We have studied the Tamm-type surface state of La(0001) by tunneling spectroscopy within a wide range of tunneling currents from 0.1 nA to 8000 nA, thereby tuning the electric-field strength in a tip-vacuum-sample tunnel junction.
Dominik Schreyer   +2 more
doaj   +1 more source

Scanning tunneling spectroscopy of high-temperature superconductors [PDF]

open access: yes, 2006
Tunneling spectroscopy played a central role in the experimental verification of the microscopic theory of superconductivity in the classical superconductors.
Abrikosov, A. A.   +86 more
core   +2 more sources

Spin excitations and correlations in scanning tunneling spectroscopy

open access: yesNew Journal of Physics, 2015
In recent years inelastic spin-flip spectroscopy using a low-temperature scanning tunneling microscope has been a very successful tool for studying not only individual spins but also complex coupled systems. When these systems interact with the electrons
Markus Ternes
doaj   +1 more source

Waveform-sequencing for scanning tunneling microscopy based pump-probe spectroscopy and pulsed-ESR

open access: yesMethodsX, 2019
We present here the straightforward implementation of pump-probe methods into existing scanning tunneling microscopy (STM) systems. Our method uses the waveform-sequencing abilities of a standard arbitrary waveform generator (AWG) and a simple mechanical
Fabian Donat Natterer
doaj   +1 more source

Zero-bias anomaly in one-dimensional ultrathin metallic nanowires

open access: yesAIP Advances, 2012
The electronic properties of ultrathin bimetallic Au/Ag nanowires with 2-3 nm in diameter were explored by scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS) at liquid-nitrogen temperature.
Hui Yan   +6 more
doaj   +1 more source

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