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Nonequilibrium dynamics of the three-dimensional Edwards-Anderson spin-glass model with Gaussian couplings: strong heterogeneities and the backbone picture
(Springer, 2016-11)
We numerically study the three-dimensional Edwards-Anderson model with Gaussian couplings, focusing on the heterogeneities arising in its nonequilibrium dynamics. Results are analyzed in terms of the backbone picture, ...
Phosphate glasses: Via coacervation route containing CdFe2O4 nanoparticles: Structural, optical and magnetic characterization
(2018-01-01)
CdFe2O4 nanoparticles of around 3.9 nm were synthesized using the coprecipitation method and protected by a silica layer. The nanoparticles were mixed with a coacervate and transformed into phosphate glasses with 1, 4 and ...
High tantalum oxide content in Eu3+-doped phosphate glass and glass-ceramics for photonic applications
(2020-11-25)
Transparent Eu3+-doped tantalum phosphate glass-ceramics containing Na2Ta8O21 nanocrystals were successfully obtained by a two-step heat treatment. Structural analyses were performed using X-ray diffraction, Transmission ...
Role of defects on the magnetic behaviour of the geometrically frustrated spinel ZnFe 2 O 4
(Elsevier Science Sa, 2018-04)
Defective zinc ferrites ZnFe$_2$O$_{4-δ}$ obtained by vacuum annealing bulk Zn-ferrite at different temperatures TAnn were investigated by using XANES at Zn-K, Fe-K and XMCD at Fe-L$_{2,3}$ edges, static and dynamic magnetic ...
Magnetic 3D scaffolds for tissue engineering applications: Bioactive glass (45S5) coated with iron-loaded hydroxyapatite nanoparticles
(IOP Publishing, 2021-09)
Magnetic 45S5 bioactive glass (BG) based scaffolds covered with iron-loaded hydroxyapatite (Fe-HA-BG) nanoparticles were obtained and its cytotoxicity investigated. Fe-HA nanoparticles were synthesized by a wet chemical ...
Tm3+ and Tm3+-Ho3+ doped fluorogermanate glasses for S-band amplifiers
(2005-07-15)
Two series of glasses with composition (mol%) 70PbGeO3- 15PbF2-15CdF2, the first one with different Tm 3+ contents (0.2, 0.4, 0.6 and 0.8 mol%) and the second one with 0.2 mol% Tm3+ and different Ho3+ contents (0.1, 0.5, ...
Tm3+ and Tm3+-Ho3+ doped fluorogermanate glasses for S-band amplifiers
(2005-07-15)
Two series of glasses with composition (mol%) 70PbGeO3- 15PbF2-15CdF2, the first one with different Tm 3+ contents (0.2, 0.4, 0.6 and 0.8 mol%) and the second one with 0.2 mol% Tm3+ and different Ho3+ contents (0.1, 0.5, ...
Bose glass and Mott glass of quasiparticles in a doped quantum magnet
(NATURE PUBLISHING GROUPLONDON, 2012)
The low-temperature states of bosonic fluids exhibit fundamental quantum effects at the macroscopic scale: the best-known examples are Bose-Einstein condensation and superfluidity, which have been tested experimentally in ...
Magnetic doping in Zn7-xMxSb2O12 spinels (M = Ni and Co)
(Elsevier B.V., 2002-07-01)
In this article we present a concise report on our studies on the magnetic behavior and structural arrangements of the inverse spinel Zn7-xMxSb2O12 system (M = Ni, Co). Studies on the temperature dependence of the magnetization ...