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Electron Spin Resonance of Tl ++ Centres in KCl Crystals
Author(s) -
Dreybrodt W.,
Silber D.
Publication year - 1967
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.19670200134
Subject(s) - electron paramagnetic resonance , hyperfine structure , thallium , ion , chemistry , atomic physics , ground state , doping , electron , linear combination of atomic orbitals , condensed matter physics , nuclear magnetic resonance , physics , atomic orbital , inorganic chemistry , quantum mechanics , organic chemistry
Thallium‐doped KCl crystals are X‐rayed at 77 °K. They are warmed up to 300 °K and then cooled down again to 77 °K. ESR signals showing a resolved hyperfine structure due to six chlorines are observed. These arise from a Tl ++ ion on a cation lattice site. The constants of the spin‐Hamiltonian are determined. Using Watanabe's theory [1] the coefficients of the ground state LCAO function are determined from the h.f.s. constants. From these data and from data of the optical absorption spectrum of Tl ++ [3] the g ‐shift is calculated and compared with the experimental value.
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