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Ballistic Generators of Terahertz Current Oscillations with p‐Quantum Well Bases
Author(s) -
Korshak A. N.,
Gribnikov Z. S.,
Vagidov N. Z.,
Kozlovsky S. I.,
Mitin V. V.
Publication year - 1997
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 - 10.1002/1521-3951(199711)204:1<80::aid-pssb80>3.0.co;2-t
Subject(s) - terahertz radiation , physics , diode , condensed matter physics , ballistic conduction , fermi energy , oscillation (cell signaling) , quantum , dispersion relation , quantum mechanics , electron , chemistry , biochemistry
Oscillations of space charge limited currents in short doped p‐quantum well bases of ballistic diodes as a result of a negative effective mass region in the quantized hole dispersion relation are considered. Details of contact design (contact shape and Fermi‐energy of injected ballistic holes) strongly affect the generation regime. This regime has a maximum voltage range for flat contacts and for an optimal Fermi‐energy that would provide a quasineutral region in the diode base.