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Localized Electron Levels in Isotopically Ordered Crystals (Isotopic Quantum Wells)
Author(s) -
Berezin A. A.
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.2221440231
Subject(s) - isotope , lattice (music) , electron , kinetic isotope effect , crystal structure , atomic physics , condensed matter physics , chemistry , molecular physics , materials science , physics , crystallography , nuclear physics , deuterium , acoustics
An infinite defect‐free crystal lattice with large‐scale variations of isotope distribution is considered. It is shown that a sufficiently large “isotopic island” could form a potential well with localized energy levels. An example is given for CaO lattice with isotope 40 Ca constituting a “host” part into which a spherical region with 48 Ca is incorporated without any lattice misfits. The critical radius of such region which is able to act as an electron trap with a localized electron level is estimated as about 5 nm.
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