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Plasma-assisted molecular beam epitaxy of GaN nanowires on epitaxial single-layer graphene
(Spie-int Soc Optical Engineering, 2018-01-01)
We investigate the formation of GaN nanowires in plasma-assisted molecular beam epitaxy on epitaxial graphene prepared on SiC(0001) using the surface graphitization method in an inductively heated furnace. The pristine ...
Changing of the spontaneous polarization in niobate nanoparticles induced by non isovalent doping
(2015-01-01)
Ferroelectric niobates with tetragonal tungsten bronze TTB-type structure have shown great technology interest for application in pyroelectric detectors and piezoelectric transducers, sensor/filter in composite. The synthesis ...
The use of pulsed electric acoustic technique for measuring electric field profiles in ferroelectric ceramic
(2002-12-01)
The pulsed electric acoustic technique, PEA, have been usually applied to probe space charge profiles in polymers. In this work we show preliminary results obtained with lead zirconate-titanate and niobium, PZTN, ferroelectric ...
Local electromethanical properties of the CaCu 3Ti 4O 12 ceramics
(2010-12-01)
Scanning probe microscopy (SPM) was used to probe piezoelectric vibrations and local conductivity in CaCu 3Ti 4O 12 (CCTO) ceramics at room temperature. Piezoelectric contrast was observed on the polished surfaces of CCTO ...
Tissue repairing macrophage phenotype is induced by direct interaction with platelets
(2016)
INTRODUCTION: Tissue repair process requires of specialized cells as macrophages.
These cells must be stimulated properly to induce tissue repairing macrophage to finally
heal tissue. Platelets contain many factors that ...
The investigation of α→β phase transition in poly(vinylidene fluoride) (PVDF)
(2005-12-01)
The phase transition from the non-polar α-phase to the polar β-phase of poly(vinylidene fluoride) (PVDF) has been investigated using micro-Raman spectroscopy, which is advantageous for being a non-destructive technique. ...
Solitons in atomic condensates, with optical lattices and field-induced dipole moments
(Iop Publishing Ltd, 2015-01-01)
We report some investigations on the existence of matter-wave solitons when considering cross-combined optical lattices (OL) in three ditnensimis (3D), where we have a nonlinear OL in one of the directions, which is ...