Results 1 to 10 of about 1,945,862 (288)

Multi-Channel Exploration of O Adatom on TiO2(110) Surface by Scanning Probe Microscopy

open access: yesNanomaterials, 2020
We studied the O2 dissociated state under the different O2 exposed temperatures with atomic resolution by scanning probe microscopy (SPM) and imaged the O adatom by simultaneous atomic force microscopy (AFM)/scanning tunneling microscopy (STM).
Huan Fei Wen   +2 more
doaj   +1 more source

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

Optical and Structural Characterization of Pin Photodetector Based on Germanium Nanocrystals for Third Generation Solar Cells [PDF]

open access: yesЖурнал нано- та електронної фізики, 2016
We investigated the structural and optoelectronic properties of p-n germanium nanocrystals based junctions embedded between GaAs substrate and layers of ZnO:Al or a-Si:H.
K.K. Sossoe   +4 more
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

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

Quantum dot scanning tunneling microscopy for Majorana bound states in continuum

open access: yesFrontiers in Physics, 2022
We propose a device composed of a quantum dot (QD) connected to a normal metal lead to detect Majorana bound states (MBSs), which are formed at the ends of a topological superconductor nanowire (TSNW) and coupled to the lead with spin-dependent ...
Hai-Rui Zhang, Yong-Ping Sun
doaj   +1 more source

Scanning tunneling microscopy measurements of the spin Hall effect in tungsten films by using iron-coated tungsten tips

open access: yesAIP Advances, 2018
Scanning tunneling microscopy experiments using iron-coated tungsten tips and current-carrying tungsten films have been conducted. An asymmetry of the tunneling current with respect to the change of the direction of the bias current through a tungsten ...
Ting Xie   +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

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

High dynamic range scanning tunneling microscopy

open access: yesMethodsX
We increase the dynamical range of a scanning tunneling microscope (STM) by actively subtracting dominant current-harmonics generated by nonlinearities in the current-voltage characteristics that could saturate the current preamplifier at low junction ...
Ajla Karić   +3 more
doaj   +1 more source

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