Results 21 to 30 of about 2,191,569 (294)

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

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

Graphene nanoribbons with zigzag and armchair edges prepared by scanning tunneling microscope lithography on gold substrates [PDF]

open access: yes, 2014
The properties of graphene nanoribbons are dependent on both the nanoribbon width and the crystallographic orientation of the edges. Scanning tunneling microscope lithography is a method which is able to create graphene nanoribbons with well defined edge
Dobrik, G.   +7 more
core   +1 more source

Scanning tunneling spectroscopy of nanostructured Zn surfaces

open access: yes, 2002
Scanning tunneling spectroscopy investigations involving the I-V characteristics and the conductance of nanostructured mirror bright Zn coatings have been performed.
Štrbac, Svetlana   +3 more
core   +4 more sources

Atomic-Scale Investigation of Graphene Grown on Cu Foil and the Effects of Thermal Annealing [PDF]

open access: yes, 2011
We have investigated the effects of thermal annealing on ex-situ chemically vapor deposited submonolayer graphene islands on polycrystalline Cu foil at the atomic-scale using ultrahigh vacuum scanning tunneling microscopy.
Yong P. Chen   +32 more
core   +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

The Nature of CVC Nonlinearity in Low-Voltage Scanning Tunneling Spectroscopy of Semiconductors [PDF]

open access: yesEPJ Web of Conferences, 2021
A new model of field emission in a scanning tunnelling microscope was developed. The model describes the tunnelling current from a surface of semiconductor (semimetal) and allows estimating the preexponential factor in the expression for the tunneling ...
Loskutov A.I.   +6 more
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

Sub-monolayer film growth of a volatile lanthanide complex on metallic surfaces

open access: yesBeilstein Journal of Nanotechnology, 2015
We deposited a volatile lanthanide complex, tris(2,2,6,6-tetramethyl-3,5-heptanedionato)terbium(III), onto metal surfaces of Cu(111), Ag(111) and Au(111) in vacuum and observed well-ordered sub-monolayer films with low temperature (5 K) scanning ...
Hironari Isshiki   +3 more
doaj   +1 more source

Lattice reconstruction induced multiple ultra-flat bands in twisted bilayer WSe2

open access: yesNature Communications, 2021
It was predicted that lattice reconstruction can lead to the emergence of multiple ultra-flat electronic bands in twisted bilayer transition metal dichalcogenides.
En Li   +7 more
doaj   +1 more source

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