Results 21 to 30 of about 2,042,987 (291)

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

Dirac surface states and nature of superconductivity in noncentrosymmetric BiPd [PDF]

open access: yes, 2015
In non-magnetic bulk materials, inversion symmetry protects the spin degeneracy. If the bulk crystal structure lacks a centre of inversion, however, spin-orbit interactions lift the spin degeneracy, leading to a Rashba metal whose Fermi surfaces exhibit ...
Yaresko, Alexander   +8 more
core   +1 more source

Characterization of a home-built low temperature scanning probe microscopy system [PDF]

open access: yes, 2011
The continuing advancement of technology is the driving force behind science and fundamental research. Scanning probe instruments still have a major impact in nanoscience and technology, because they provide a link between the macroscopic world and ...
Thai, Quang Thanh
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

Octyl-decorated Fréchet-type dendrons : a general motif for visualisation of static and dynamic behaviour using scanning tunnelling microscopy [PDF]

open access: yes, 2006
Firstly, a short overview on supramolecular chemistry including definitions, basic principles and examples taken from the literature of 2D and 3D self-assembly processes is given in Chapter 1.
Scherer, Lukas J.
core   +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

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

Real-space imaging of the atomic-scale magnetic structure of Fe1+yTe [PDF]

open access: yes, 2014
Spin-polarized scanning tunneling microscopy (SP-STM) has been used extensively to study magnetic properties of nanostructures. Using SP-STM to visualize magnetic order in strongly correlated materials on an atomic scale is highly desirable, but ...
Lin, Chengtian   +20 more
core   +1 more source

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