Phenomenological theory of pressure-induced equilibrium phase transitions: The mott model |
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| Authors: | A Yu Gufan |
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| Institution: | 1.Scientific Research Institute of Physics,Southern Federal University,Rostov-on-Don,Russia;2.Institute of Radio Engineering and Electronics,Russian Academy of Sciences,Moscow,Russia |
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| Abstract: | A theory is constructed for the pressure-induced phase transitions caused by a strong nonlinear dependence of nonequilibrium
potential on the mean deformation of a crystal’s unit cell. Four distinctions are revealed between such phase transitions
and the transitions described by a Fermi model (i.e., those related to the inversion of lower energy levels in elements of
the structure). Examples of the pressure4nduced phase transitions described by the Mott model are given. |
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