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Hyperfine and transferred hyperfine interaction of Cr 3+ in yal and lual garnets
Author(s) -
Valentin R.,
Luft H.,
Baberschke K.
Publication year - 1971
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.2220480235
Subject(s) - hyperfine structure , quadrupole , octahedron , electric field gradient , atomic physics , chemistry , dipole , ion , field (mathematics) , nucleus , magnetic dipole , condensed matter physics , physics , organic chemistry , mathematics , pure mathematics , biology , microbiology and biotechnology
The hyperfine field at the 53 Cr nucleus and the transferred hyperfine field at the Al 3+ neighbours at the next octahedra sites were measured with ENDOR at Cr 3+ ‐doped YAlG and LuAlG single crystals. The electric field gradient at the octahedrally surrounded lattice sites could be determined by the quadrupole interaction with the 27 Al nucleus. From the measured quadrupole splitting of 53 C1 3+ a new value of the 53 Cr quadrupole moment of |Q| =0.082 b is derived. The magnetic part of the transferred hyperfine interaction between the Cr 3+ ion and the A1 nuclei at the next octahedra sites could be well described assuming a point‐dipole model.