Results 21 to 30 of about 77,080 (261)

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

Noncontact lateral-force gradient measurement on Si(111)-7×7 surface with small-amplitude off-resonance atomic force microscopy [PDF]

open access: yes, 2009
In this work, the authors report on a quantitative investigation of lateral-force gradient and lateral force between a tungsten tip and Si(111)-(7×7) surface using combined noncontact lateral-force microscopy and scanning tunneling microscopy ...
Atabak, Mehrdad   +5 more
core   +3 more sources

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

Bulk Cr tips for scanning tunneling microscopy and spin-polarized scanning tunneling microscopy

open access: yes, 2007
A simple, reliable method for preparation of bulk Cr tips for Scanning Tunneling Microscopy (STM) is proposed and its potentialities in performing high-quality and high-resolution STM and Spin Polarized-STM (SP-STM) are investigated.
Bassi, A. Li   +11 more
core   +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 Microscopy [PDF]

open access: yesLe Journal de Physique IV, 1993
Theory experiment topography and spectrosocpy metal surfaces semiconductor surfaces graphite imaging of large molecules tunneling in liquids atomic force microscopy low-temperature studies potentiometry and other applications final remarks.
  +6 more sources

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