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Thin films of polycrystalline $\beta$-Mn structure CoZn have been grown on thermally oxidized Si substrates by co-sputtering from elemental targets followed by annealing. A range of films grown with variable Co deposition power and fixed Zn…

Materials Science · Physics 2023-11-20 M. Dearg , G. Burnell , S. Langridge , C. H. Marrows

Thin aluminum oxide films were deposited by a new and simple physicochemical method called chemical liquid phase deposition (CLD) on semiconductor materials. Aluminum sulfate with crystallized water and sodium bicarbonate were used as…

Materials Science · Physics 2007-05-23 Jie Sun , Yingchun Sun

We report a method to control the conformation of a weak polyampholyte (the protein $\beta$-casein) in Langmuir monolayers by light, even though the protein is not photosensitive. Our approach is to couple the monolayer state to a…

Soft Condensed Matter · Physics 2009-11-07 Pietro Cicuta , Ian Hopkinson , Peter G. Petrov

Aggregation of the nanoparticles is a natural phenomena due to various biological and physical parameters but these aggregates are highly unstable. If aggregates would have been stable then it might be useful for some biomedical…

Optics · Physics 2022-01-28 Dheeraj Pratap , Vikas , Rizul Gautam , Amit Kumar Shaw , Sanjeev Soni

Two-dimensional ensembles of bent-core shaped molecules attain at highly orienting surfaces liquid crystalline structures characteristic mostly for lamellar chiral or nonchiral antiferroelectric order. Here, using the Onsager-type of…

Soft Condensed Matter · Physics 2016-06-13 Paweł Karbowniczek , Michał Cieśla , Lech Longa , Agnieszka Chrzanowska

We report on the preparation of thin films and multilayers of the intermetallic Heusler compound CuMnAl, Co2MnSn, Co2MnSi and Co2MnGe by rf-sputtering on MgO and Al2O3 substrates. Cu2MnAl can be grown epitaxially with (100)-orientation on…

Condensed Matter · Physics 2009-11-07 U. Geiersbach , A. Bergmann , K. Westerholt

We use molecular dynamics (MD) to simulate an unstable homogeneous mixture of binary fluids (AB), confined in a slit pore of width $D$. The pore walls are assumed to be flat and structureless, and attract one component of the mixture (A)…

Disordered Systems and Neural Networks · Physics 2009-11-11 S. K. Das , S. Puri Jawaharlal , J. Horbach , Kurt Binder

DNA molecules spin-coated on amorphous quartz substrates are shown to form stable films. Electron density profiles (EDPs) along the film depth show that film prepared from aqueous solution of DNA exhibits layering of the molecules in three…

We review recent observations of molecular gas in nearby galaxies and their implications for the star formation law on large (>1 kpc) scales. High-resolution data provided by millimetre interferometers are now adding to the basic…

Astrophysics · Physics 2007-05-23 Tony Wong , Michele D. Thornley

Here we present high spatial resolution (<1 arcsecond) observations of molecular emission in Orion-KL conducted using the Combined Array for Research in Millimeter-Wave Astronomy (CARMA). This work was motivated by recent millimeter…

Astrophysics of Galaxies · Physics 2015-06-05 Susanna L. Widicus Weaver , Douglas N. Friedel

We report a molecular dynamics simulation demonstrating that the Smectic B crystalline phase (Cr-B), commonly observed in mesogenic systems of anisotropic molecules, can be formed by a system of identical particles interacting via a…

Soft Condensed Matter · Physics 2013-12-16 A. Metere , T. Oppelstrup , S. Sarman , A. Laaksonen , M. Dzugutov

Carbon nitrides have recently come into focus for photo- and thermal catalysis, both as support materials for metal nanoparticles as well as photocatalysts themselves. While many approaches for the synthesis of three-dimensional carbon…

Molecular dynamics simulations of ultrathin water film confined between atomically flat rigid diamond plates are described. Films with thickness of one and two molecular diameters are concerned and TIP4P model is used for water molecules.…

Statistical Mechanics · Physics 2009-03-25 A. V. Khomenko , N. V. Prodanov

The cobalt oxide system LaCoO$_3$ and its Sr-doped child compounds have been intensively studied for decades due to their intriguing magnetic and electronic properties. Preparing thin La$_{1-x}$Sr$_x$CoO$_3$ (LSCO) films on different…

Materials Science · Physics 2014-03-07 E. Szilágyi , E. Kótai , D. Rata , Z. Németh , G. Vankó

Fractal-like nanopatterned DNA thin films have been fabricated on mica substrate by Langmuir-Blodgett (LB) technique. Structures and components of DNA nanopatterns were investigated using atomic force microscopy (AFM) and X-ray…

Materials Science · Physics 2010-09-10 Shuxi Dai , Xingtang Zhang , Zuliang Du , Hongxin Dang

We report the preparation of sodium alanate, a promising hydrogen storage material, in a thin film form using co-sputtering in a reactive atmosphere of atomic hydrogen. We study the phase formation and distribution, and the hydrogen…

Materials Science · Physics 2009-10-14 M. Filippi , J. H. Rector , R. Gremaud , M. J van Setten , B. Dam

It is known that the presence of cations like Ca++ or Pb++ in the water subphase alters the pressure-area isotherms for fatty acid monolayers. The corresponding lattice constant changes have been studied using x-ray diffraction.…

Chemical Physics · Physics 2009-10-31 R. S. Ghaskadvi , Sharon Carr , Michael Dennin

In this study, we regulate adhesion between thin metal films to produce a large-area vacuum nanogap for electron tunneling. Multilayer structures comprising thin metal films with adjustable adhesion were fabricated. The Cu/Ag/Ti/Si…

Mesoscale and Nanoscale Physics · Physics 2015-06-17 Z. Taliashvili , A. Tavkhelidze , L. Jangidze , Y. Blagidze

Because of its promising contribution to the bottom-up approach for nanofabrication of complex molecular architectures, self-organization is widely studied nowadays. Numerous studies have tackled supramolecular chirality or low-dimensional…

Materials Science · Physics 2007-05-23 T. Zambelli , S. Goudeau , J. Lagoute , A. Gourdon , X. Bouju , S. Gauthier

Using Monte Carlo simulation method in the canonical ensemble, we have studied the commensurate-incommensurate transition in two-dimensional finite mixed clusters of Ar and Kr adsorbed on graphite basal plane at low temperatures. It has…

Mesoscale and Nanoscale Physics · Physics 2015-01-13 A. Patrykiejew , S. Sokołowski