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VOLUME 25 (1977) | ISSUE 1 | PAGE 22
Periodic structures in phase transitions of electron-phonon systems by a deformation interaction in a magnetic field
We show that an instability is produced in an electron-phonon system in a quantizing magnetic field at T<Tm, where Tm ~ b4 and where b is the electron-phonon interaction constant. At lower temperatures Г~ exp(—const/ b 2), the instability becomes of the Peierls type. The new states are periodic-spatially charge and deformation distributions, and have a macroscopic period at Г~ Tm.