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Tunneling in k ‐space. Application to degenerate valence band in the infinite spin–orbit interaction limit
Author(s) -
Dargys A.,
Rudolph A. F.
Publication year - 1987
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.2221400224
Subject(s) - degenerate energy levels , quantum tunnelling , physics , spin–orbit interaction , electric field , condensed matter physics , homogeneous , semiconductor , spin (aerodynamics) , orbit (dynamics) , quantum mechanics , thermodynamics , engineering , aerospace engineering
Hole tunneling between light and heavy mass bands in a homogeneous semiconductor due to a strong electric field is analyzed in the framework of spherical and at k = 0 degenerate bands when the spin–orbit interaction is infinite. Nonperturbative techniques are used to solve the problem. As in the case of zero spin–orbit interaction it is found that intervalence band tunneling takes place in a ring‐shaped volume whose symmetry axis is parallel to the electric field.