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Browsing 02 Physical Sciences by Title

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  • Josephsonvortex flow resistance in Bi2Sr2Ca2Cu3Oy single crystals and its possible application in the manipulation of spin and charge textures in diluted magnetic semiconductors 
    Liang B; Yu Shengyang; Ooi S; Hirata K; Ding S; Shi Dongyang; Dou Shi; Wang Xiu-Hong; Lin Zhi Wei (Jack); Lin Cc; Zhu Jianguo (American Institute of Physics, 2007)
    In this work, the flow of the Josephson vortices (JVs) has been studied for the highly anisotropic Bi2Sr2Ca2Cu3Oy (Bi2223) single crystals. A giant flow of JVs or giant positive magnetoresistance (MR) of over 500%–2000% ...
  • Kinetics of gas mediated electron beam induced etching 
    Steven Randolph; Toth Milos; Cullen Jared; Chandler Olive; Lobo Charlene (American Institute of Physics, 2011)
    Electron beam induced etching (EBIE) is a high resolution, direct write, chemical dry etch process in which surface-adsorbed precursor molecules are activated by an electron beam. We show that nanoscale EBIE is rate limited ...
  • Large positive magnetoresistance effect below Curie temperature in In1.90xMn0.1SnxO3 
    Wang Xiu-Hong; Peleckis G; Dou Shi; Liu Rongmei; Zhu Jianguo (American Institute of Physics, 2007)
    We report on the magnetoresistance (MR) and magnetic properties of In1.90−xMn0.1SnxO3 (0<x <0.06) oxide. All samples were found to be ferromagnetic below TC=46 K. Sn doping changed In1.90Mn0.1O3 from an insulator to a ...
  • Lateral dynamic interaction analysis of a train-girder-pier system 
    Xia Hx; Guo Wenshan; Wu Xindong; Pi Yong Lin; Bradford Mark (Academic Press Ltd Elsevier Science Ltd, 2008)
    A dynamic model of a coupled train-girder-pier system is developed in this paper. Each vehicle in a train is modeled with 27 degrees-of-freedom for a 4-axle passenger coach or freight car, and 31 for a 6-axle locomotive. ...
  • Lattice contractions of a nanoparticle due to the surface tension A model of elasticity 
    Huang, Z.; Thomson, P.; Di, S. (PergamonElsevier Science, 2007)
    The lattice parameters of a metallic nanoparticle decrease with its size. To describe this phenomenon, a model based on elasticity is developed in this paper. Using this model, we investigate the lattice contraction of a ...
  • Light Emission Properties of GaN-Based Laser Diode Structures 
    Godlewski Marek; Phillips Matthew; Czernecki R; Targowski G; Perlin Piotr; Leszczynski M; Figge Stephan; Hommel Detlef (Polish Academy of Sciences, 2005)
    Cathodoluminescence is applied for evaluation of in-depth and in-plane variations of light emission from two types of GaN-based laser diode structures. We evaluate in-depth properties of the laser diode emission and ...
  • Light Splitting In Nanoporous Gold And Silver 
    Bosman Michel; Anstis Geoffrey; Keast Vicki; Clarke Jennifer; Cortie Michael (Amer Chemical Soc, 2012)
    Nanoporous gold and silver exhibit strong, omnidirectional broad-band absorption in the far-field. Even though they consist entirely of gold or silver atoms, these materials appear black and dull, in great contrast with ...
  • Light trapping in translucent samples and its effect on the hemispherical transmittance obtained by an integrating sphere 
    Roos Arne; Jonsson Jacob; Smith Geoffrey (International Society for Optical Engineering (SPIE), 2003)
    When a beam of light is incident on a translucent sample, a significant fraction of the light is scattered at high angles. Some of this scattered light may be trapped inside the substrate through multiple reflections ...
  • Linear optical properties of Ge nanocrystals in silica 
    Dowd Annette; Elliman Robert; Luther-Davies Barry (American Institute of Physics, 2001)
    The absorption and extinction spectra of Ge nanocrystals in silica formed by ion implantation are studied using photothermal deflection and transmission spectroscopies. It is found that scattering makes a significant ...
  • LiNi0.4Co0.3Mn0.3O2 thin film electrode by aerosol deposition 
    Kim Icpyo; Nam Tae-Hyun; Kim Ki-Won; Ahn Jou-Hyeon; Park Dong-Soo; Ahn Cheolwoo; Chun Byong; Wang Guoxiu; Ahn Hyojun (Springer New York LLC, 2012)
    LiNi0.4Co0.3Mn0.3O2 thin film electrodes are fabricated from LiNi0.4Co0.3Mn0.3O2 raw powder at room temperature without pretreatments using aerosol deposition that is much faster and easier than conventional methods such ...
  • Local Cloning Of Two Product States 
    Ji Zhengfeng; Feng Yuan; Ying Mingsheng (American Physical Soc, 2005)
    Local quantum operations and classical communication (LOCC) put considerable constraints on many quantum information processing tasks such as cloning and discrimination. Surprisingly, however, discrimination of any two ...
  • Local Distinguishability Of Orthogonal 2 Circle Times 3 Pure States 
    Xin Yu; Duan Runyao (Amer Physical Soc, 2008)
    We present a complete characterization for the local distinguishability of orthogonal 2 circle times 3 pure states except for some special cases of three states. Interestingly, we find there is a large class of four or ...
  • Localfield correction for an interstitial impurity in a crystal 
    Rahmani Adel; Chaumet Patrick; Bryant Garnett (Optical Society of America, 2002)
    The local-field correction experienced by an interstitial impurity in a crystal with cubic symmetry is derived by use of a rigorous, self-consistent, semimicroscopic description of spontaneous emission in a microcavity. We ...
  • Localfield enhancement in an optical force metallic nanotrap Application to singlemolecule spectroscopy 
    Chaumet Patrick; Rahmani Adel; Nieto-Vesperinas Manuel (Optical Society of America, 2006)
    We study the local-field enhancement in a nanocavity created by optical nanomanipulation. Recently we showed that a metallic probe can modify the optical force experienced by a metallic particle and generate a material ...
  • Localization of 3-D Near-field Electromagnetic Sources Using C-SPRIT 
    Abedin Mohammed; Sanagavarapu Ananda (The Institute of Electrical and Electronic Engineers Inc (IEEE), 2007)
    Here, we present a method of locating nearfield electromagnetic sources by estimating the parameters using the new C-SPRIT algorithm. A simple L-shape received antenna array is used for locating the sources of scattering ...
  • Localized Green's functions for a twodimentional periodic material 
    Poulton Christopher; Mcphedran Ross; Nicorovici Nicolae; Botten Lindsay (Kluwer, 2003)
    We describe a method for the calculation of Green's functions for an array of dielectric cylinders. The method is to first construct quasi-periodic Green's functions, with Bloch vector kB. This function also obeys ...
  • Locally Indistinguishable Subspaces Spanned By Three-Qubit Unextendible Product Bases 
    Duan Runyao; Xin Yu; Ying Mingsheng (Amer Physical Soc, 2010)
    We study the local distinguishability of general multiqubit states and show that local projective measurements and classical communication are as powerful as the most general local measurements and classical communication. ...
  • Locally undetermined states, generalized Schmidt decomposition, and application in distributed computing 
    Feng Yuan; Duan Runyao; Ying Mingsheng (Rinton Press, 2009)
    Multipartite quantum states that cannot be uniquely determined by their reduced states of all proper subsets of the parties exhibit some inherit `high-order' correlation. This paper elaborates this issue by giving necessary ...
  • Local Observation and Spectroscopy of Optical Modes in Active Photonic Crystal Microcavity 
    Louvion Nicolas; Gerard Davy; Mouette J; De Fornel Frederique; Seassal Christian; Letarte Xavier; Rahmani Adel; Callard Segolene (American Physical Society, 2005)
    We report the direct, room-temperature, near-field mapping and spectroscopy of the optical modes of a photonic-crystal microcavity containing quantum wells. We use a near-field optical probe to reveal the imprint of the ...
  • Local Observation and Spectroscopy of Optical Modes in Active Photonic Crystal Microcavity 
    Gerard Davy; Louvion Nicolas; Callard Segolene; Rahmani Adel; De Fornel Frederique; Mouette J; Letarte Xavier; Seassal Christian (Australia and New Zealand Third Sector Research, 2001)
    We report the direct, room-temperature, near-field mapping and spectroscopy of the optical modes of a photonic-crystal microcavity containing quantum wells. We use a near-field optical probe to reveal the imprint of the ...