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7 papers · 1 filter
Stable and unstable regimes in Bose-Fermi mixture with attraction between components
A. M. Belemuk, S. -T. Chui, V. N. Ryzhov
A collapse of the trapped boson- fermion mixture with the attraction between bosons and fermions is investigated in the framework of the effective Hamiltonian for the Bose system.…
Ab initio calculations of the physical properties of transition metal carbides and nitrides and possible routes to high-Tc
E. G. Maksimov, S. V. Ebert, M. V. Magnitskaya +2
Ab initio linear-response calculations are reported of the phonon spectra and the electron-phonon interaction for several transition metal carbides and nitrides in a NaCl-type stru…
Orientational glass transition in C_60
T. I. Schelkacheva, E. E. Tareyeva, N. M. Chtchelkatchev
We construct a model for qualitative description of the orientational glass transition in C_60 on the spin-glass theory basis. The physical origin of the frustration and the disord…
Space-time dispersion of graphene conductivity
L. A. Falkovsky, A. A. Varlamov
We present an analytic calculation of the conductivity of pure graphene as a function of frequency , wave-vector , and temperature for the range where the energies related to…
Peculiar behavior of the electrical resistivity of MnSi at the ferromagnetic phase transition
Alla E. Petrova, Eric Bauer, V. Krasnorussky +1
The electrical resistivity of a single crystal of MnSi was measured across its ferromagnetic phase transition line at ambient and high pressures. Sharp peaks of the temperature coe…
High-Pressure Synthesized Materials: a Chest of Treasure and Hints
V. V. Brazhkin
The present review covers the production of new materials under high pressures. A primary limitation on the use of pressures higher than 1 GPa is a small volume and mass of a produ…