Concept

Praséodyme

Publications associées (65)

Structure and dynamics of lanthanide ions and lanthanide complexes in solution

Recent neutron-diffraction studies on dilute solutions have shown that a change in coordination numbers from nine to eight water molecules in the first hydration sphere occurs when going from the light to the heavy lanthanide (III) ions. To acquire a deepe ...

1994

Hole subbands in quantum wells: Comparison between theory and hot-electron-acceptor-luminescence experiments

Alfredo Pasquarello

Recently Zachau, Kash, and Masselink [Phys. Rev. B 44, 4048 (1991)] determined hole-subband dispersions in quantum wells experimentally with the use of hot-electron-acceptor luminescence. We present here results of multiple-band calculations, which are in ...

1992

Rydberg series of charge-transfer excitations: atomic chlorine and atomic hydrogen in rare gas crystals

Majed Chergui

Rydberg series obsd. in the excitation spectra of Cl and H atoms isolated in the rare gas (Rg) crystals Kr and Xe are assocd. with the charge transfer species Cl-Rg+ and H-Rg+. The progressions originate from hole states of Rg+ which converge to the top of ...

1991

Fano profiles on multiphonon continua in electronic transitions of matrix-isolated nitric oxide

Majed Chergui

Fano line shapes are reported in the excitation spectrum of the total fluorescence of NO trapped in Kr matrixes. They result from the homogeneous configuration mixing of the sharp valence vibrational bands B2P(v'=12,15,18)-X2P(v''=0) with the broadened mul ...

1991

Effects of Cu substitution by Zn on transport properties of Y1Ba2Cu3O7-δ

Davor Pavuna

The authors report the temperature dependence of resistivity and the Hall coefficient RH of a series of Y1Ba2(Cu1-xZnx)3O7-δ ceramics with x up to 0.075. In all their samples they have observed linear temperature dependence of (eRH)-1. The slope, d(eRH)-1/ ...

1989

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