Browsing by Subject "Temperature dependence"
Now showing items 1-7 of 7
-
Article
Coexistence of ferromagnetic and glassy behavior in semiconducting LaNi 0.2Co 0.8O 3
(2002)Systematic dc and ac magnetic susceptibility studies have been performed on single-phase LaNi 0.2Co 0.8O 3 powder samples. Evidence of hysteresis loops supports the existence of ferromagnetic correlations that lead to a ...
-
Article
Electrical determination of the spin relaxation time of photoexcited electrons in GaAs
(2010)Spin-dependent transport for photoexcited electrons in an epitaxial Fe/GaAs interface was characterized from 5 to 300 K. The presence of spin-dependent transport was confirmed at all the measured temperatures and the spin ...
-
Article
Pulsed laser deposition and thermal characterization of Ni-doped La5Ca9Cu24O41 thin films
(2011)Highly b-axis oriented polycrystalline Ni-doped La5Ca 9Cu24O41 thin films have been grown on (0 0 1) SrTiO3 substrates using the pulsed laser deposition technique. EDX measurements have revealed nearly stoichiometric ...
-
Article
Structure inhomogeneities, shallow defects, and charge transport in the series of thermoelectric materials K2Bi8-xSb xSe13
(2006)The charge transport properties of the low-dimensional thermoelectric materials K2 Bi8-x Sbx Se13 (0<x≤8) were studied as a function of temperature and composition. The Seebeck coefficient shows an evolution from n - to p ...
-
Article
Thermoelectric properties of Mg2Si coatings deposited by pack cementation assisted process on heavily doped Si substrates
(2014)This work presents a study of structural and thermoelectric properties of Mg2Si coatings deposited on heavily doped p- and n-type Si substrates, at 650 C. The as-grown layers were smooth and uniform in thickness without ...
-
Article
UV resonance Raman study of TTR(105-115) structural evolution as a function of temperature
(2011)UV resonance Raman spectroscopy was used to probe the temperature dependence of the conformation of TTR(105-115) in solution. Resonance Raman spectra with excitation at 239.5 nm, show an increase in the absolute resonance ...
-
Article
UV resonance Raman study of TTR(105-115) structural evolution as a function of temperatureAAA
(2011)UV resonance Raman spectroscopy was used to probe the temperature dependence of the conformation of TTR(105-115) in solution. Resonance Raman spectra with excitation at 239.5 nm, show an increase in the absolute resonance ...