Au-Ni solid solutions studied by numerical relaxation
نویسندگان
چکیده
منابع مشابه
Molecular Mobility of the Water Molecules in Aqueous Sucrose Solutions, Studied by 2H-NMR Relaxation
D euteron spin lattice relaxation times Tx of sucrose/D20 solutions are given as function of tem perature, pressure, frequency and concentration. From the temperature dependence of the 2H -T l the rotational dynamics of the hydrated sucrose complex and the water molecules are determined. For high pressure and high concentrations the tem perature dependence of the water molecules is described by...
متن کاملAnomalous behaviour of the Curie temperature of Au-Ni-Au sandwiches at ultra-low Ni thickness
2014 We have studied, between 2 K and 300 K and in fields up to 10 Oe, the magnetic behaviour of Au-Ni-Au sandwiches of Au thickness 200 A and Ni thickness ranging from 4 A to 18.6 A. The crystalline structure of our samples has also been carefully investigated. From the observed magnetic behaviour we can estimate the ferromagnetic transition temperature Tc : it shows an abrupt decrease around ...
متن کاملElectron-lattice energy relaxation in laser-excited thin-film Au-insulator heterostructures studied by ultrafast MeV electron diffraction
We apply time-resolved MeV electron diffraction to study the electron-lattice energy relaxation in thin film Au-insulator heterostructures. Through precise measurements of the transient Debye-Waller-factor, the mean-square atomic displacement is directly determined, which allows to quantitatively follow the temporal evolution of the lattice temperature after short pulse laser excitation. Data o...
متن کاملRelaxation of bulk metallic glasses studied by mechanical spectroscopy.
The relaxational dynamics in metallic glasses (MGs) is investigated by using mechanical spectroscopy. The spectra show that in MGs there are two relaxations: (i) the α relaxation, linked to the glass transition, as observed in other classes of amorphous materials; and (ii) the β relaxation, well observed below the glass transition, with an intensity strongly dependent on the MG composition, the...
متن کاملMolecular motions in chitosan studied by dielectric relaxation spectroscopy.
Neutralized and nonneutralized chitosan films subject to different thermal treatments were studied by dielectric relaxation spectroscopy from -130 to +150 degrees C in the frequency range between 20 Hz and 1 MHz. Two main relaxation processes, both arrhenian type, were detected: process I at temperatures below 0 degrees C with a mean activation energy of 49 +/- 1 kJ mol(-1), which has the chara...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal de Physique I
سال: 1993
ISSN: 1155-4304,1286-4862
DOI: 10.1051/jp1:1993163