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4 papers
Thermodynamic Properties of the Discommensuration Point for Incommensurate Structures: A "Third-Order" Phase Transition
A. N. Rubtsov, T. Janssen
The consequences of the opening of a phason gap in incommensurate systems are studied on a simple model, the discrete frustrated -model. Analytical considerations and numerica…
Quantum discrete model at finite temperatures: the mean-field phase diagram
V. V. Savkin, A. N. Rubtsov
The quantum discrete model at finite temperature is studied in the mean-field approximation. The phase diagrams are obtained for a wide range of the model parameters. The dom…
Analytical model for a crossover between uncorrelated and fractal behaviour of a self-repulsive chain
A. N. Rubtsov
The thermodynamics of a long self-repulsive chain is studied. In dimensions it shows two distinctly different regimes, corresponding to weak and strong correlations in the sy…
Oscillatory screening of the dc electric field in the Si-SiO multiple quantum wells probed by second-harmonic generation
V. V. Savkin, A. A. Fedyanin, A. N. Rubtsov +2
DC-electric field, being screened in 3D semiconductors, normally decays monotonically in space. Experimental studies of the DC electric field screening in Si-SiO multiple quant…