214 research outputs found

    The study of organogel formation with cyclo(leucyl-leucine) by the AFM method

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    This work was supported by the ministry of education and science of russian federation [grant №14.y26.31.0019

    Current-induced phase transition in ballistic Ni nanocontacts

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    Local phase transition from ferromagnetic to paramagnetic state in the region of the ballistic Ni nanocontacts (NCs) has been experimentally observed. We found that contact size reduction leads to an increase in the bias voltage at which the local phase transition occurs. Presented theoretical interpretation of this phenomena takes into the account the specificity of the local heating of the ballistic NC and describes the electron's energy relaxation dependences on the applied voltage. The experimental data are in good qualitative and quantitative agreement with the theory proposed.Comment: 8 pages, 2 figure

    Surface morphology and electrocatalytic properties of nickel nanoparticles formed in track pores

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    © 2016, Pleiades Publishing, Ltd.Structures, each of which is composed of a conducting substrate with a protective dielectric layer containing an array of equal-sized pores formed under the action of high-energy ions and chemical etching, are created. The created pores are electrochemically filled with nickel nanoparticles. With atomic-force microscopy (AFM), it is established that Ni nanoparticles are generated exclusively within ion tracks without film formation on the surface of a silicon-dioxide layer. Histograms illustrating the nanoparticle-diameter distribution are constructed, and areas of the nickel nanoparticles are calculated. The electrochemical and electrocatalytic properties of Ni nanoparticles inherent to ethanol-oxidation reactions are investigated. The catalytic activity per unit area of the nanocatalyst is estimated using voltammograms, AFM data, and histograms characterizing the particle size distribution

    Destructiveness as a disfunction of religious identity: A comment on the methodology of research into new religious movements

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    In the article, the problem of new religious movements (NRM) is regarded as a a specific form of modern religiosity, shaped under the influence of the deconstruction of traditional religious normative conventions. The special attention is paid to the identification processes, influenced by NRMs, particularly to such controversial aspects as its destructive potential for the human personality. Authors suggest that the destructiveness emerges at the stage of interpreting religious experience and is reinforced by its ritual and institutional organization in the religious act. © IDOSI Publications, 2012

    MFM Study of the Domain Structure of Permalloy Microparticles under Mechanical Stress

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    © 2018 The Authors, published by EDP Sciences. The domain structure of planar permalloy (Py) microparticles was studied under mechanical stress. An array of Py particles was formed by electron beam evaporation of Py on flat and preliminarily bent glass substrates. After evaporation the substrate was unbent and the Py particles were compressed along one axis. The change of the domain structure of stressed particles in comparison with that of unstressed particles was studied. It was shown that the change of the domain structure of Py particles depends on their compression ratio

    Magnetic structure of nickel nanowires after the high-density current pulse

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    © 2016, Pleiades Publishing, Ltd.Changes in the magnetic structure of nickel nanowires formed on a nonconductive surface after the high-density current pulse have been investigated using magnetic force microscopy and voltammetry. Based on the obtained experimental data and results of the computer simulation, it has been concluded that the main reason for the change in the magnetic structure is the heating of the nanowire by a current pulse. It has been shown that, during the subsequent cooling, the newly formed magnetic structure is pinned by surface roughnesses of the relief of the nanowire under investigation
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