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21 papers · 2 filters
Optical Method for Determination of Carrier Density in Modulation Doped Quantum Wells
G. V. Astakhov, V. P. Kochereshko, D. R. Yakovlev +7
An optical method is suggested to determine the concentration of two-dimensional electrons in modulation-doped quantum wells at low and moderate electron densities between 10^{9} a…
Theory for high spin systems with orbital degeneracy
Shun-Qing Shen, X. C. Xie, F. C. Zhang
High-spin systems with orbital degeneracy are studied in the large spin limit. In the absence of Hund's coupling, the classical spin model is mapped onto disconnected orbital syste…
Anomalous acoustoelectric effect in La_{0.67}Ca_{0.33}MnO_{3} films
Y. Ilisavskii, A. Goltsev, K. Dyakonov +7
We have studied acoustoelectric (AE) effect produced by surface acoustic waves (SAW) in a monolithic layered structure, composed of piezodielectric LiNbO_{3} substrate and La_{0.67…
Electron-electron interaction in multiwall carbon nanotubes
A. I. Romanenko, A. V. Okotrub, O. B. Anikeeva +4
Magnetic susceptibility of pristine and brominated arc-produced sample of multiwall carbon nanotubes was measured from 4.2 to 400 K. An additional contribution to diama…
Thermoelectric power of Cerium and Ytterbium intermetallics
V. Zlatic, I. Milat, B. Coqblin +1
Temperature dependence S(T) of the thermoelectric power of metallic systems with cerium and ytterbium ions exhibits some characteristic features, which can be used to classify thes…
Theory of valence transitions in Ytterbium and Europium intermetallics
V. Zlatic, J. K. Freericks
The exact solution of the multi-component Falicov-Kimball model in infinite-dimensions is presented and used to discuss a new fixed point of valence fluctuating intermetallics with…