Results 31 to 40 of about 2,191,569 (294)

Scanning tunneling microscope spectroscopy of polymers [PDF]

open access: yesScanning, 2002
AbstractThis paper presents theoretical results on the relationship between density of states (DOS) and scanning tunneling microscope current‐voltage curves in polymers. We considered samples of linear hydrocarbons electrically grounded at one of their extremes.
openaire   +2 more sources

Chiral-Nematic Lattice Instability in Charge Density Wave of 1T-TiSe<sub>2</sub>. [PDF]

open access: yesAdv Sci (Weinh)
The charge density wave of 1T‐TiSe2 appears chiral to surface probes yet loses all symmetry in spectroscopic measurements. This study reveals how cooperative condensation of multiple phonon modes stabilizes a chiral monoclinic ground state, while a shallow nematic energy landscape allows the lattice to break the remaining symmetry at negligible cost ...
Alghifari AA, Do E, Park JW, Yeom HW.
europepmc   +2 more sources

Adsorption and reversible conformational change of a thiophene based molecule on Au(111)

open access: yesScientific Reports, 2023
We present a low temperature scanning tunneling microscope investigation of a prochiral thiophene-based molecule that self-assembles forming islands with different domains on the Au(111) surface.
Suchetana Sarkar   +8 more
doaj   +1 more source

Inelastic scanning tunneling spectroscopy: magnetic excitations on the nanoscale [PDF]

open access: yes, 2009
Inelastic scanning tunneling spectroscopy is used to study elementary excitations (magnons) in magnetic systems of various dimensions: from bulk to single magnetic atoms. The creation mechanism, the excitation probability, the spectrum and the lifetimes
Balashov, Timofey
core   +1 more source

Influence of the adsorption geometry of PTCDA on Ag(111) on the tip–molecule forces in non-contact atomic force microscopy

open access: yesBeilstein Journal of Nanotechnology, 2014
Perylene-3,4,9,10-tetracarboxylic dianhydride (PTCDA) adsorbed on a metal surface is a prototypical organic–anorganic interface. In the past, scanning tunneling microscopy and scanning tunneling spectroscopy studies of PTCDA adsorbed on Ag(111) have ...
Gernot Langewisch   +3 more
doaj   +1 more source

Resonant Electron Tunneling Induces Isomerization of π‐Expanded Oligothiophene Macrocycles in a 2D Crystal

open access: yesAdvanced Science, 2022
Macrocyclic oligothiophenes and their π‐expanded derivatives constitute versatile building blocks for the design of (supra)molecularly engineered active interfaces, owing to their structural, chemical, and optoelectronic properties.
José D. Cojal González   +2 more
doaj   +1 more source

Tunneling spectroscopy of magnetic tunnel junctions [PDF]

open access: yes, 2010
Drewello V. Tunneling spectroscopy of magnetic tunnel junctions. Bielefeld (Germany): Bielefeld University; 2010.In this thesis, magnetic tunnel junctions based on MgO barriers have been prepared and investigated.
Drewello, Volker
core  

Scanning tunneling spectroscopy on electron-boson interactions in superconductors [PDF]

open access: yes, 2014
This work describes the experimental study of electron-boson interactions in superconductors by means of inelastic electron tunneling spectroscopy performed with a scanning tunneling microscope (STM) at temperatures below 1 K.
Schackert, Michael Peter
core   +1 more source

Achieving High ON State Current through Ferroelectric Polarization‐Dependent Interfacial Resistance Switching in Undoped Orthorhombic HfO2 Films

open access: yesAdvanced Functional Materials, EarlyView.
Ferroelectric tunnel junction devices based on epitaxial undoped ferroelectric HfO2 films demonstrate stable switching endurance of over 106 switching cycles, low write voltages of ±3 V, 16 measured resistance states, and neuromorphic capability.
Markus Hellenbrand   +13 more
wiley   +1 more source

Imaging real-space flat band localization in kagome magnet FeSn

open access: yesCommunications Materials, 2023
Direct imaging and tuning of flat band localization in kagome materials remains a challenge. Here, scanning tunneling microscopy and photoemission spectroscopy are used to study FeSn, revealing real-space localization and magnetic tuning of the flat band
Daniel Multer   +14 more
doaj   +1 more source

Home - About - Disclaimer - Privacy