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Infrared and Raman Spectroscopy of Acceptor‐Bound Holes: Boron Acceptors in Isotopically Controlled “Blue” Diamonds
Author(s) -
Kim Hyunjung,
Vogelgesang R.,
Ramdas A.K.,
Rodriguez S.,
Grimsditch M.,
Anthony T.R.
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<451::aid-pssb451>3.0.co;2-0
Subject(s) - boron , acceptor , raman spectroscopy , zeeman effect , infrared , valence (chemistry) , atomic physics , materials science , chemistry , physics , condensed matter physics , organic chemistry , quantum mechanics , magnetic field , optics
The extremely rare, nitrogen‐free, boron‐doped diamonds display a Lyman spectrum in the infrared associated with a substitutional group III acceptor. The Lyman spectrum reveals a unique example of “self‐energy” corrections to the effective mass theory for the same substitutional acceptor but located in a host differing merely in its isotopic composition. The Lyman spectrum, observed as a function of temperature, shows the existence of a close pair of 1s ground states separated by ≈2 meV. The electronic Raman spectrum discloses a line at 2.07(1) meV in natural and 2.01(1) meV in 13 C diamonds corresponding to the transition between the spin–orbit split 1s(p 3/2 ) and 1s(p 1/2 ) ground states. Polarization features show the transition to be dominantly Γ 5 in character, placing an upper limit on the ratio of the non‐spherical Luttinger parameters of the valence band; Zeeman and piezospectroscopic effects fully support the assignment.