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Injected Electron Currents Through Insulators
Author(s) -
Christov S. G.
Publication year - 1969
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19690320203
Subject(s) - thermionic emission , electron , insulator (electricity) , field electron emission , current (fluid) , dielectric , condensed matter physics , range (aeronautics) , physics , electrode , momentum (technical analysis) , field (mathematics) , atomic physics , computational physics , materials science , quantum mechanics , optoelectronics , mathematics , thermodynamics , finance , pure mathematics , economics , composite material
The previously presented unified theory of field and thermionic emission is extended to electron emission into dielectrics, including thin films between two metal electrodes. The current equations are derived under the assumption of a parabolic energy—momentum dependence and convenient barrier shape approximations for various thicknesses of the insulating layer, but the general method is used in the case of any arbitrary barrier shape. Both cases of equal and unequal effective electron masses in the insulator and the metals are considered. The current expressions obtained are applicable to the whole range of fields and temperatures between the limits of thermionic and field emission.