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We have performed the calculations of the size effect in the temperature dependence of BaTiO3 nanograin ceramics specific heat and dielectric permittivity. We took into account the distribution of the grain sizes, that exists in any real…

Materials Science · Physics 2007-05-23 M. D. Glinchuk , P. I. Bykov

General approach for consideration of primary ferroic (ferroelectric, ferromagnetic, ferroelastic) nanoparticles phase transitions was proposed in phenomenological theory framework. The surface stress, order parameter gradient, striction as…

Materials Science · Physics 2009-11-13 Anna N. Morozovska , Maya D. Glinchuk , Eugene A. Eliseev

Powder X-ray diffraction (PXRD) and neutron powder diffraction (NPD) have been used to investigate the crystal structure of CoFe2O4 nanoparticles prepared via different hydrothermal synthesis routes, with particular attention given to…

Silver nanocrystals have been prepared by reacting silver nitrate with ascorbic acid in aqueous solution containing a low concentration of a commercial polynaphtalene sulphonate polymer (Daxad 19). Various crystalline morphologies have been…

We report the synthesis of cobalt nanoparticles with different shapes and sizes by rapid pyrolysis of cobalt carbonyl in the presence of various surfactants. The size and shape of the nanoparticles were influenced by reaction conditions,…

Mesoscale and Nanoscale Physics · Physics 2009-08-06 D. Srikala , V. N. Singh , A. Banerjee , B. R. Mehta , S. Patnaik

In transition metal oxides, quantum confinement arising from a large surface to volume ratio often gives rise to novel physico-chemical properties at nanoscale. Their size dependent properties have potential applications in diverse areas,…

We deposited thin layers of CdS and ZnS nanoparticles embedded in a thermoplastic cyclo-olephin copolymer (COC) with elevated optical transparency and highly bio-compatible. The nanoparticles were obtained by thiolate precursors previously…

Materials Science · Physics 2007-05-23 T. Di Luccio , E. Piscopiello , A. M. Laera , M. Vittori Antisari

Specific heat of polycrystalline BaTiO3 thin films on the fused quartz substrate was measured by ac-hot probe method. Phase transition temperature, excess entropy and spontaneous polarization were determined as a function of film thickness…

Materials Science · Physics 2007-05-23 B. A. Strukov , S. T. Davitadze , S. G. Shulman , B. M. Goltzman , V. V. Lemanov

The average scattered intensity is determined by the optical characteristics of particles in dispersion. The normalized time auto-correlation function of the scattered light intensity $g^{(2)}(\tau) $ includes both the optical and…

Chemical Physics · Physics 2007-05-23 Yong Sun

The intermetallic compound Zr3Al is severely deformed by the method of repeated cold rolling. By X-ray diffraction it is shown that this leads to amorphization. TEM investigations reveal that a homogeneously distributed debris of very small…

Accurately measuring the size, morphology, and structure of nanoparticles is very important, because they are strongly dependent on their properties for many applications. In this paper, we present a deep-learning based method for…

Materials Science · Physics 2022-07-29 Claudius Zelenka , Marius Kamp , Kolja Strohm , Akram Kadoura , Jacob Johny , Reinhard Koch , Lorenz Kienle

The structure and magnetic properties of nanocrystalline PrCo$_3$ obtained from high energy milling technique are investigated by X-ray diffraction, Curie temperature determination and magnetic properties measurements are reported. The…

Materials Science · Physics 2015-05-28 K. Younsi , V. Russier , L. Bessais , J. -C. Crivello

This work reports a simple, novel, cost effective and eco-friendly electrolytic synthesis of silver nanoparticles using AgNO3 as metal precursor. The synthesis rate is much faster than other methods and this approach is suitable for large…

General Physics · Physics 2011-11-02 T. Theivasanthi , M. Alagar

Iron-oxide nanoparticles have been synthesized by high temperature arc plasma route with different plasma currents and characterized for their structure, morphology and local atomic order. Fe K-edge x-ray absorption spectra reveal distinct…

Materials Science · Physics 2014-01-16 C. Balasubramanian , B. Joseph , P. Gupta , N. L. Saini , S. Mukherjee , D. Di Gioacchino , A. Marcelli

Light absorption and scattering of plasmonic metal nanoparticles can lead to non-equilibrium charge carriers, intense electromagnetic near-fields, and heat generation, with promising applications in a vast range of fields, from chemical and…

Optics · Physics 2020-08-27 Guillaume Baffou , Ivan Bordacchini , Andrea Baldi , Romain Quidant

The surface reconstruction of the Fe catalyst films due to high temperature processing in hydrogen prior to nanotube nucleation and its effect on the growth morphologies of partially filled carbon nanotubes (CNTs) synthesized using…

Applied Physics · Physics 2020-04-27 Joydip Sengupta , Chacko Jacob

Nickel oxide nanoparticles of different sizes are prepared and characterized by x-ray diffraction and transmission electron microscopy. A.C. susceptibility measurements as a function of temperature are carried out for various particle sizes…

Soft Condensed Matter · Physics 2007-05-23 S. D. Tiwari , K. P. Rajeev

In the supporting information file of the article Controlled Formation and Growth Kinetics of Phase-Pure, Crystalline BiFeO3 Nanoparticles (Crystal Growth & Design 2019), there is a description on how to use Scherrer equation for in situ…

Materials Science · Physics 2019-11-05 Adriana Valério , Sérgio L. Morelhão

A recent area of interest in thermal applications has been nanofluids, with extensive research conducted in the field, and numerous publications expounding on new results coming to the fore. The properties of such fluids depend on their…

Applied Physics · Physics 2019-05-14 Ansab Jan , Burhan Mir , Ahmad A Mir

Superconducting whisker like and bulk single crystals of PrFeAs(O,F) were grown at 3 GPa and 1500 C from NaAs flux using the cubic anvil high pressure and high temperature technique. The ribbon shaped whisker like crystals were 400-1300…

Superconductivity · Physics 2013-11-08 N. D. Zhigadlo
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