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Individual Thermal Donor Species Studied with High‐Field Magnetic Resonance
Author(s) -
Dirksen Ruud,
Gregorkiewicz T.,
Ammerlaan C.A.J.
Publication year - 1998
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/(sici)1521-3951(199812)210:2<539::aid-pssb539>3.0.co;2-9
Subject(s) - orthorhombic crystal system , anisotropy , boron , magnetic field , condensed matter physics , symmetry (geometry) , silicon , field (mathematics) , thermal , resonance (particle physics) , materials science , spectroscopy , nuclear magnetic resonance , chemistry , analytical chemistry (journal) , crystallography , atomic physics , physics , optics , thermodynamics , crystal structure , optoelectronics , geometry , mathematics , organic chemistry , quantum mechanics , chromatography , pure mathematics
Thermal donors generated in p‐type boron‐doped Czochralski‐grown silicon by a 450 °C heat treatment have been studied by high‐field magnetic resonance spectroscopy. The experiments were conducted at a microwave frequency of 140 GHz and in a magnetic field of approximately 5 T. The symmetry of the g ‐tensor of four individually resolved Si‐NL8 species was determined. It turned out that only one of the early species shows a true orthorhombic symmetry. Upon prolonged heat treatment times the relative concentration of the most anisotropic (early) species showed a clear decrease, while that of the later species increased.