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The mechanism of adsorption of the 1,4,5,8-naphthalene-tetracarboxylic-dianhydride (NTCDA) molecule on the Ag(110) surface is elucidated on the basis of extensive density functional theory calculations. This molecule, together with its…

Materials Science · Physics 2007-05-23 Audrius Alkauskas , Alexis Baratoff , C. Bruder

If all space is occupied by a linear bianisotropic material--whether homogeneous or not--then the concurrent replacements of the permittivity and the impermeability tensors by the negatives of their respective complex conjugates and of the…

Optics · Physics 2007-05-23 A. Lakhtakia

A detailed study of the precipitation of the \gamma' (AlAg2) phase in undeformed aluminium-silver alloys has been conducted. Several previously unreported features were observed, including the formation of discrete three-dimensional…

Materials Science · Physics 2012-03-05 Julian M. Rosalie , Laure Bourgeois , Barrington C. Muddle

The formation of interface dipoles in self-assembled monolayers (SAMs) of --CH$_3$ and --CF$_3$ terminated short-chain alkanethiolates on Ag(111) is studied by means of density functional theory calculations. The interface dipoles are…

Materials Science · Physics 2011-11-09 Paul C. Rusu , Gianluca Giovannetti , Geert Brocks

We report on the optical characterization of semicontinuous nanostructured silver films exhibiting tunable optical reflectance asymmetries. The films are obtained using a multi-step process, where a nanocrystalline silver film is first…

Optics · Physics 2015-05-20 Aiqing Chen , Miriam Deutsch

The precipitation microstructure of the \gamma' (AlAg2) intermetallic phase has been examined in aluminium-silver-copper alloys. The microstructure developed in an Al-0.90at.%Ag-0.90at.%Cu alloy was significantly different from that…

Materials Science · Physics 2012-03-05 Julian M. Rosalie , Laure Bourgeois , Barrington C. Muddle

A magnetic origin for the honeycomb reconstruction of metallic surfaces with three-fold symmetry like Pb/Ge (111) is proposed. Assuming that the groundstate is an antiferromagnetic insulator over the triangular lattice of adatom sites (Pb),…

Strongly Correlated Electrons · Physics 2009-10-31 J. P. Rodriguez , Emilio Artacho

We have discovered an optically uniform type of domain that occurs in Twisted Nematic (TN) cells that are constructed from substrates chemically patterned with stripes via microcontact printing of Self-Assembled Monolayers (SAM); such…

Soft Condensed Matter · Physics 2010-10-26 T. J. Atherton , J. R. Sambles , J. P. Bramble , J. R. Henderson , S. D. Evans

Effect of anisotropy in the physical tensor description of the negative index of refraction material (left-handed material, LHM) acting as a substrate is found on the electromagnetic field distributions. Field distributions are provided in…

Materials Science · Physics 2007-05-23 Clifford M. Krowne

Anomaly mediated supersymmetry breaking (AMSB), when implemented in MSSM is known to suffer from the problem of negative slepton mass squared leading to breakdown of electric charge conservation. We show however that when MSSM is extended…

High Energy Physics - Phenomenology · Physics 2008-11-26 R. N. Mohapatra , Nobuchika Okada , Hai-Bo Yu

The deposition of one silicon monolayer on Ag(111) gives rise to a set of superstructures depending on growth conditions. These superstructures are correlated to the epitaxy between the honeycomb structure of silicon (so called silicene)…

Materials Science · Physics 2015-09-30 H. Jamgotchian , B. Ealet , Y. Colignon , H. Maradj , J-Y. Hoarau , J-P. Biberian , B. Aufray

In layered materials, a common mode of deformation involves buckling of the layers under tensile deformation in the direction perpendicular to the layers. The instability mechanism, which operates in elastic materials from geological to…

Materials Science · Physics 2012-01-13 Ali Makke , Michel Perez , Olivier Lame , Jean-Louis Barrat

The intriguing properties, especially Dirac physics in graphene, have inspired the pursuit of two-dimensional materials in honeycomb structure. Here we achieved a monolayer transition metal monochalcogenide AgTe on Ag(111) by tellurization…

We study the self-assembly of halogen-based organic molecules on a passivated silicon surface. The room temperature adsorption of 2,4,6-tris(4-iodophenyl)-1,3,5-triazine (TIPT) on the Si(111)-$\surd$3$\times$$\surd$3-Ag surface is…

Materials Science · Physics 2024-10-07 R Liu , D. Marchese , R. C. Mawhinney , M. C. Gallagher

Recently first principles microscopic calculations, using the generalized gradient approximation, appeared for the solid mixed system $AgCl{_x}Br_{1-x}$ at various compositions. Here, we suggest a model that can estimate the compressibility…

Materials Science · Physics 2017-04-20 Efthimios S. Skordas

Climate change motivates the search for non-carbon-emitting energy generation and storage solutions. Metal hydrides show promising characteristics for this purpose. They can be further stabilized by tailoring the negative pressure of…

Materials Science · Physics 2022-09-21 A. Tehranchi , P. Chakraborty , M. L. Freixes , E. McEniry , B. Gault , T. Hickel , J. Neugebauer

Using atomic resolved scanning tunneling microscopy, we present here the experimental evidence of a silicene sheet (graphene like structure) epitaxially grown on a close-packed silver surface (Ag(111)). This has been achieved via direct…

Black phosphorus is a material with an intrinsic anisotropy in electronic and optical properties due to its puckered honeycomb lattice. Optical absorption is different for incident light with linear polarization in the armchair and zigzag…

Mesoscale and Nanoscale Physics · Physics 2022-04-20 Leandro Seixas

By using molecular dynamics simulations, the research examine how copper and silver nanowires respond to tensile loading in order to clarify their nanoscale deformation mechanisms. The results demonstrate that these two metal nanowires…

Materials Science · Physics 2025-05-02 Xiaorui Hu , Jiawei Xiong

We have investigated anomalous lattice behavior of metal organic framework compound AgC8N5on application of pressure and temperature using ab-initio density functional theory calculations. The van der Waals dispersion interactions are found…

Materials Science · Physics 2018-07-19 Baltej Singh , Mayanak K. Gupta , Ranjan Mittal , Samrath L. Chaplot