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Extensive density-functional calculations on atomic chemisorption of H, B, C, N, O, F, Al, Si, P, S, and Cl on the polar TiC(111) and TiN(111) yield similar adsorption trends for the two surfaces: (i) pyramid-like adsorption-energy trends…

Materials Science · Physics 2009-11-11 Aleksandra Vojvodic , Carlo Ruberto , Bengt I. Lundqvist

B$_5$Se this work we investigate the Li adsorption properties of a hybrid 2D material, namely monolayer B5Se with first principles calculations. 2 dimensional B$_5$Se was found to have a distorted hexagonal structure with five B atoms and…

Materials Science · Physics 2022-02-22 Amretashis Sengupta

X-ray spectroscopies, by their high selectivity and sensitivity to the chemical environment around the atoms probed, provide significant insight into the electronic structure of molecules and materials. Interpreting experimental results…

Chemical Physics · Physics 2024-12-23 Wilken Aldair Misael , André Severo Pereira Gomes

Probing electrical and magnetic properties in aqueous environments remains a frontier challenge in nanoscale sensing. Our inability to do so with quantitative accuracy imposes severe limitations, for example, on our understanding of the…

We discuss neutral and charged complexes (biexciton and trion) formed by indirect excitons in layered quasi-two-dimensional semiconductor heterostructures. Indirect excitons -- long-lived neutral Coulomb-bound pairs of electrons and holes…

Mesoscale and Nanoscale Physics · Physics 2018-04-24 Igor V. Bondarev , Maria R. Vladimirova

Transition metal dichalcogenide heterobilayers offer attractive opportunities to realize lattices of interacting bosons with several degrees of freedom. Such heterobilayers can feature moir\'e patterns that modulate their electronic band…

Mesoscale and Nanoscale Physics · Physics 2021-08-16 Mauro Brotons-Gisbert , Hyeonjun Baek , Aidan Campbell , Kenji Watanabe , Takashi Taniguchi , Brian D. Gerardot

In this work we investigate the effects of the environment on the X-ray photoelectron spectra of hydrogen chloride and the chloride ions adsorbed on ice surfaces, as well as of chloride ions in water droplets. In our approach, we combine a…

Chemical Physics · Physics 2023-09-18 Richard A. Opoku , Céline Toubin , André Severo Pereira Gomes

Tunneling of electrons through rotor-stator anthracene aldehyde molecular interfaces is studied with a combined ab initio and model approach. Molecular electronic structure calculated from first principles is utilized to model different…

Chemical Physics · Physics 2016-05-27 Irina Petreska , Vladimir Ohanesjan , Ljupco Pejov , Ljupco Kocarev

The energetics of mixing and defect ordering in solid solutions of fluorite-structured ThO$_{2}$ with oxides of trivalent cations (Sc, In, Y, Nd, La) are investigated by electronic density-functional-theory (DFT). Through DFT calculations…

Materials Science · Physics 2010-11-19 Vitaly Alexandrov , Niels Gronbech-Jensen , Alexandra Navrotsky , Mark Asta

Ion hydration and interfacial water play crucial roles in numerous phenomena ranging from biological to industrial systems. Although biologically relevant (and mostly smaller) ions have been studied extensively in this context, very little…

Soft Condensed Matter · Physics 2019-01-01 William Rock , Baofu Qiao , Tiecheng Zhou , Aurora E. Clark , Ahmet Uysal

We report first principles theory-based comparative electronic transport studies performed for an atomic chain of Au, bare Cd9Te9 cage-like cluster and single transition metal (TM) (Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Zn, Ru, Rh, Pd) atom…

Mesoscale and Nanoscale Physics · Physics 2022-04-06 Kashinath T Chavan , Sharat Chandra , Anjali Kshirsagar

We report experimental results of the static magnetization, ESR and NMR spectroscopic measurements of the Ni-hybrid compound NiCl$_3$C$_6$H$_5$CH$_2$CH$_2$NH$_3$. In this material NiCl$_3$ octahedra are structurally arranged in chains along…

Strongly Correlated Electrons · Physics 2018-02-22 F. Lipps , A. H. Arkenbout , A. Polyakov , M. Günther , T. Salikhov , E. Vavilova , H. -H. Klauss , B. Büchner , T. M. Palstra , V. Kataev

For a molecular radical to be stable, the environment needs to be inert. Furthermore, an unpaired electron is less likely to react chemically, when it is placed in an extended orbital. Here, we use the tip of a scanning tunneling microscope…

Mesoscale and Nanoscale Physics · Physics 2020-12-22 Gael Reecht , Nils Krane , Christian Lotze , Katharina J. Franke

We measured the magnetoresistance of the 2D electron liquid formed at the (111) LaAlO$_3$/SrTiO$_3$ interface. The hexagonal symmetry of the interface is manifested in a six-fold crystalline component appearing in the anisotropic…

Strongly Correlated Electrons · Physics 2017-06-14 P. K. Rout , I. Agireen , E. Maniv , M. Goldstein , Y. Dagan

Dispersion corrected density functional theory ($\omega$B97X-D DFT) method is used to study the molecular hydrogen adsorption in $Ni_nMg_m$ $(1\geq n\geq 3,1\geq m\geq9)$ clusters. All these clusters can effectively adsorb multiple $H_2$ in…

Materials Science · Physics 2022-02-28 Bishwajit Boruah , Bulumoni Kalita

We perform computational investigations of electrolyte-mediated interactions of charged colloidal particles confined within nanochannels. We investigate the role of discrete ion effects, valence, and electrolyte strength on colloid-wall…

Soft Condensed Matter · Physics 2023-02-28 Inderbir S. Sidhu , Amalie L. Frischknecht , Paul J. Atzberger

The structural, vibrational, energetic and electronic properties of hydrogen at the stoichiometric RuO2(110) termination are studied using density functional theory. The oxide surface is found to stabilize both molecular and dissociated H2.…

Materials Science · Physics 2007-05-23 Qiang Sun , Karsten Reuter , Matthias Scheffler

Lanthanum hydride LaH$_{10}$ with a sodalitelike clathrate structure was experimentally realized to exhibit a room-temperature superconductivity under megabar pressures. Based on first-principles calculations, we reveal that the metal…

Superconductivity · Physics 2021-02-17 Seho Yi , Chongze Wang , Hyunsoo Jeon , Jun-Hyung Cho

Ionic liquids (ILs) constitute one of the most active fields of research nowadays. Many organic and inorganic molecules can be converted into ions via relatively simple procedures. These ions can be combined into ILs. Amino acid based ILs…

Materials Science · Physics 2015-01-09 Eudes Eterno Fileti , Vitaly V. Chaban

We report observations of the cyanide anion, CN, in the disk around TW~Hya covering the $N=1-0$, $N=2-1$ and $N=3-2$ transitions. Using line stacking techniques, 24 hyperfine transitions are detected out of the 30 within the observed…

Solar and Stellar Astrophysics · Physics 2020-09-02 Richard Teague , Ryan Loomis