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Related papers: Orientation-dependent C60 electronic structures re…

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As an organic semiconductor and a prototypical acceptor molecule in organic photovoltaics, C$_{60}$ has broad relevance to the world of organic thin film electronics. Although highly uniform C$_{60}$ thin films are necessary to conduct…

We report the synthesis and the electrical properties of fullerene-based molecular junctions on silicon substrate in which the highly \pi-conjugated molecule C60 (\pi quantum well) is isolated from the electrodes by alkyl chains (\sigma…

Mesoscale and Nanoscale Physics · Physics 2010-04-02 D. Guerin , S. Lenfant , S. Godey , D. Vuillaume

We show that C$_{60}$ fullerene molecules can serve as promising building blocks in the construction of versatile crystal structures with unique symmetries using first-principles calculations. These phases include quasi-2D layered…

Mesoscale and Nanoscale Physics · Physics 2025-04-03 Darius Kayley , Bo Peng

We investigate the electronic structure of ternary palladates $A$Pd$_3$O$_4$ ($A$ = Sr, Ca) using valence band photoemission spectroscopy and band structure calculations. Overall width of the valence band and energy positions of various…

Strongly Correlated Electrons · Physics 2024-04-25 B. H. Reddy , Asif Ali , Ravi Shankar Singh

We have investigated the low-energy electronic structure of the heavy fermion superconductor CeCoIn5 by angle-resolved photoemission. We focus on the dispersion and the peak width of the prominent quasi-two-dimensional Fermi surface sheet…

Yttrium can be loaded with hydrogen up to high concentrations causing dramatic structural and electronic changes of the host lattice. We report on angle-resolved photoemission experiments of the Y trihydride phase. Most importantly, we find…

Materials Science · Physics 2009-11-07 J. Hayoz , C. Koitzsch , M. Bovet , D. Naumovic , L. Schlapbach , P. Aebi

Fe-based superconductors have drawn much attention during the last decade due to the finding of superconductivity in materials containing the magnetic element, Fe, and the coexistence of superconductivity & magnetism. Extensive study of the…

Superconductivity · Physics 2015-01-07 Kalobaran Maiti

The full-potential linear augmented plane-wave calculations have been applied to investigate the systematic change of electronic structures in CaAlSi due to different stacking sequences of AlSi layers. The present ab-initio calculations…

Superconductivity · Physics 2009-11-13 S. Kuroiwa , A. Nakashima , S. Miyahara , N. Furukawa , J. Akimitsu

Using density functional theory calculations we investigate the electronic structure of graphene doped by deposition of foreign atoms. We demonstrate that, as the charge transfer to the graphene layer increases, the band structure of the…

Materials Science · Physics 2009-11-13 Matteo Calandra , Francesco Mauri

We have investigated the electronic properties of a C_60 molecule in between carbon nanotube leads. This problem has been tackled within a quantum chemical treatment utilizing a density functional theory-based LCAO approach combined with…

Mesoscale and Nanoscale Physics · Physics 2007-05-23 G. Cuniberti , R. Gutierrez , G. Fagas , F. Grossmann , K. Richter , R. Schmidt

We investigate the possibility of doping C60 crystals by applying a strong electric field. For an accurate description of a C60 field-effect device we introduce a multipole expansion of the field, the response of the C60 molecules, and the…

Condensed Matter · Physics 2009-11-10 S. Wehrli , E. Koch , M. Sigrist

The evolution of electronic wave packets (WPs) through grain boundaries (GBs) of various structures in graphene was investigated by the numerical solution of the time-dependent Schroedinger equation. WPs were injected from a simulated STM…

Mesoscale and Nanoscale Physics · Physics 2013-08-12 Péter Vancsó , Géza I. Márk , Philippe Lambin , Alexandre Mayer , Yong-Sung Kim , Chanyong Hwang , László P. Biró

Photoemission orbital tomography (POT) is a powerful tool for investigating the orbitals and electronic band structure of oriented layers of organic molecules. In many cases, POT allows conclusions to be drawn regarding the geometric…

A theoretical study proposes the atomic configuration of electron-beam irradiated C$_{60}$ thin films. We examined the electronic structure and electron-transport properties of the C$_{60}$ clusters using density-functional calculations and…

Materials Science · Physics 2015-05-28 Tomoya Ono , Shigeru Tsukamoto

We studied the electronic structure and optic absorption of phosphorene (monolayer of black phosphorus) under strain. Strain was found to be a powerful tool for the band structure engineering. The in-plane strain in armchair or zigzag…

Mesoscale and Nanoscale Physics · Physics 2016-04-20 Houjian Duan , Mou Yang , Ruiqiang Wang

We have investigated the conductance properties of C60-containing self-assembled monolayers (SAMs), which are used in organic field-effect transistors, employing a combination of molecular-dynamics simulations, semiempirical electronic…

Mesoscale and Nanoscale Physics · Physics 2015-06-19 Susanne Leitherer , Christof Jäger , Marcus Halik , Timothy Clark , Michael Thoss

Many properties of layered materials change as they are thinned from their bulk forms down to single layers, with examples including indirect-to-direct band gap transition in 2H semiconducting transition metal dichalcogenides as well as…

Alkali-doped fullerides A$_n$C$_{60}$ show a remarkably wide range of electronic phases in function of A= Li, Na, K, Rb, Cs and the degree of doping, $n=1-5$. While the presence of strong electron correlations is well established, recent…

Strongly Correlated Electrons · Physics 2016-10-10 Naoya Iwahara , Liviu F. Chibotaru

Recent I/V curve measurements suggest that C60 molecules deposited in gold nanojunctions change their adsorption configuration when a finite voltage in a 2-terminal setting is applied. This is of interest for molecular electronics because a…

Materials Science · Physics 2015-06-25 R. Stadler , S. Kubatkin , T. Bjornholm

We report the existence of confined electronic states at the (110) and (111) surfaces of SrTiO3. Using angle-resolved photoemission spectroscopy, we find that the corresponding Fermi surfaces, subband masses, and orbital ordering are…