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A Phenomenological Model of Mott's Insulator–Metal Phase Transition in 3D and 2D Boron‐Doped Diamond

MetadataDetails
Publication Date2020-05-08
Journalphysica status solidi (b)
AuthorsV. A. Kukushkin
InstitutionsInstitute of Applied Physics, Yaroslav-the-Wise Novgorod State University
Citations3

A phenomenological model of Mott’s insulator-metal phase transition in boron‐doped diamond is suggested and developed. It is shown that the transition critical boron atom concentration in 3D samples at room temperature calculated on its base coincides with the experimental data. It allows to use the model for the evaluation of the transition critical sheet boron atom concentration for an experimentally much less investigated case of 2D boron‐doped diamond. This gives a value of 3.3 × 10 13 cm −2 at room temperature in agreement with experimental data on so‐called delta layers. The latter are thin boron‐doped layers embedded in intrinsic diamond and can be used for the creation of the conductive channels of high‐speed diamond field‐effect transistors.

  1. 1994 - Semiconductors and Semimetals