نتایج جستجو برای: ultra thin film

تعداد نتایج: 240251  

Journal: :Journal of the Physical Society of Japan 2022

Ferromagnetism was observed in a Pt(100) ultrathin film deposited on SrTiO3(100) substrate. The ferromagnetism, which appears films with thicknesses of 2.2–4.4 nm, periodically changes period approximately 1 nm (5–6 monolayers) depending the thickness. This is consistent derived from quantum-well states formed thin film. X-ray magnetic circular dichroism measurements show evidence appearance in...

2014
Xinjiang Wang Baoling Huang

We have systematically investigated the in-plane thermal transport in Si thin films using an approach based on the first-principles calculations and lattice dynamics. The effects of phonon mode depletion induced by the phonon confinement and the corresponding variation in interphonon scattering, which may be important for the thermal conductivities of ultra-thin films but are often neglected in...

In this research work, silica nano-porous thin films were deposited on glass substrates by layer by layer method. The thin films were calcinated at various calcination temperatures (200, 300, 400, and 500 °C). The morphology, surface characteristics, surface roughness and hydrophilic properties of the thin films were investigated by field emission scanning electron microscopy, attenuated total ...

2014
R. S. Meshram

Thin films of LaS were prepared by using spray pyrolysis technique at 270 0 C and thickness were varied by changing the concentration of reactant solution. The films were optically characterized and their variations with film thickness were studies. It was found that thickness can be tuned by varying concentration of reactant solution. The band gap was found to vary between 2.35eV to 2.50eV. Th...

2011
Abdellah Malti Erik Gabrielsson Magnus Berggren Xavier Crispin Erik O. Gabrielsson

Journal: :iranian journal of science and technology (sciences) 2013
m. ramya

copper sulphide (cu 2 s) thin films at different thicknesses and annealing temperatures were deposited onto glass substrate by vacuum evaporation method. xrd study reveals the phase transformation of cu     2 s film at higher thickness. optical and resistivity study show the phase transformation of the film from cu     2 s to cus when they are annealed at higher temperature. sem st...

Journal: :IBM Journal of Research and Development 2011
Stephen Lynd Christensen Brian M. Haines Uday D. Lanke Matthew F. Paige Stephen G. Urquhart

This issue of the IBM journal describes recent advances in the field of nanoscience, with an emphasis on cathode lens-based microscopy methods, including LEEM (low-energy electron microscopy), PEEM (photoemission electron microscopy), and other related analytical approaches. Papers highlight scientific advances and instrumental developments on topics that include thin films, organic films, surf...

2006
Josephine Bea Chang Chenming Hu Josephine B. Chang Amanda Murphy Jason Lee

2016
Agnès Tixier-Mita Satoshi Ihida Bertrand-David Ségard Grant A. Cathcart Takuya Takahashi Hiroyuki Fujita Hiroshi Toshiyoshi

2010
Anton Kapustin Ketan Vyas

We introduce and study a new 3d Topological Field Theory which can be associated to any compact real manifold X. This TFT is analogous to the 2d A-model and reduces to it upon compactification on an interval with suitable boundary conditions. It plays a role in 3d mirror symmetry as well as in the physical approach to the geometric Langlands duality. A similar TFT can be defined in four dimensi...

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