The Surface Tension at Metal-Insulator Phase Transition in the Magnetic Field.

Any metal-insulator transitions in a crystalline material must be a transition from a situation in which electronic bands overlap to a situation when they do not [1]. On the basis of the phenomenological theory [2], it is considered various singularities in the magnetic field for the surface tension at the metal-insulator contact. The surface tension displays also quantum magnetic oscillations at low temperatures. The consideration is applied to the Mott insulator in the magnetic field.

[1] N.F. Mott. Metal-Insulator, 2nd ed. (Taylor@Francis, London, 1990).
[2] L.B. Dubovskii, Physica B 536 469-473, 2018; J. Low. Temp. Phys. 182: 192-205, 2016.