Buscar
Mostrando ítems 1-10 de 85
Dielectric function spectra from a nondegenerate polaron gas
(Elsevier, 2007-02-07)
Pequenos polarons ligados e centros de cor em topázio
(Universidade Federal de Minas GeraisUFMG, 2010-08-04)
In the present work we studied the color beneficiation processes of colorless topaz, an abundant gemstone in Brazil. Blue topaz is the most internationally traded gemstone in the gem and market, reaching about 100 million ...
Tkachenko polarons in vortex lattices
(American Physical Society - APSCollege Park, 2013)
We analyze the properties of impurities immersed in a vortex lattice formed by ultracold bosons in the mean field quantum Hall regime. In addition to the effects of a periodic lattice potential, the impurity is dressed by ...
Simultaneous observation of the magnetic and electric behavior in a correlated system near a metal-semiconductor transition: ESR in pellets of conducting polymers
(Amer Physical Soc, 2009-07-01)
Electron spin resonance (ESR) experiments show, at the metal-semiconductor transition temperature of a conducting polymer, the distinct contributions of the disordered and crystalline regions. In the more disordered regions ...
Simultaneous observation of the magnetic and electric behavior in a correlated system near a metal-semiconductor transition: ESR in pellets of conducting polymers
(Amer Physical Soc, 2009-07-01)
Electron spin resonance (ESR) experiments show, at the metal-semiconductor transition temperature of a conducting polymer, the distinct contributions of the disordered and crystalline regions. In the more disordered regions ...
Electrical transport properties of V2O5 thin films obtained by thermal annealing of layers grown by RF magnetron sputtering at room temperature
(Elsevier Science Sa, 2015-08)
The present study investigates the main electrical transport mechanism in V2O5 thin films deposited by RF magnetron sputtering on the basis of the Mott's small polaron hopping model. The material under test was obtained ...
Isothermal annealing of a 620 nm optical absorption band in Brazilian topaz crystals
(Elsevier B.V., 2013-04-15)
Isothermal decay behaviors, observed at 515, 523, 562, and 693 K, for an optical absorption band at 620 nm in gamma-irradiated Brazilian blue topaz were analyzed using a kinetic model consisting of O- bound small polarons ...