0000000000465293

AUTHOR

Igor Bdikin

showing 2 related works from this author

Grain size effect and local disorder in polycrystalline relaxors via scanning probe microscopy

2007

Local piezoresponse of individual grains in polycrystalline Pb0.9125La0.0975(Zr0.65Ti0.35)0.976O3 (PLZT 9.75/65/35) relaxor ceramics is studied using the scanning probe microscopy (SPM) technique. The observed piezoelectric contrast consisting of irregular (labyrinth-type) polarization patterns is attributed to the compositional disorder and consequent charge imbalance caused by high La concentration. A measure of this disorder, the polarization correlation length ξ, is directly determined using an autocorrelation analysis function implemented in the SPM software. The analysis of the obtained images shows that ξ taken at the scale ~200 nm varies as a function of the position inside the grai…

Materials scienceAcoustics and UltrasonicsCondensed matter physicsMineralogyDielectricCondensed Matter PhysicsFerroelectricityPiezoelectricityGrain sizeSurfaces Coatings and FilmsElectronic Optical and Magnetic MaterialsScanning probe microscopyvisual_artvisual_art.visual_art_mediumGrain boundaryCeramicCrystalliteJournal of Physics D: Applied Physics
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Filling carbon nanotubes with magnetic particles

2013

Magnetic carbon nanotube composites were obtained by filling carbon nanotubes with paramagnetic iron oxide particles. Measurements indicate that these functionalized nanotubes are superparamagnetic at room temperature. Details about the production and characterization of these materials are described along with the experimental procedures employed. These magnetic carbon nanotubes have the potential to be used in a wide range of applications, in particular, the production of nanofluids, which can be controlled by appropriate magnetic fields.

Materials scienceCarbon nanofiberCarbon nanotube actuatorsMechanical properties of carbon nanotubesNanotechnology02 engineering and technologyGeneral ChemistryCarbon nanotube010402 general chemistry021001 nanoscience & nanotechnologyCondensed Matter::Mesoscopic Systems and Quantum Hall Effect01 natural sciencesCAPILLARITY0104 chemical scienceslaw.inventionOptical properties of carbon nanotubesCondensed Matter::Materials ScienceCarbon nanobudPotential applications of carbon nanotubeslawCHEMISTRYMaterials ChemistryNANOPARTICLESMagnetic nanoparticles0210 nano-technology
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