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ESR and NMR Study of Mixed Yttrium–Lutetium–Aluminum Garnets
Author(s) -
Asatryan H. R.,
Petrosian A. G.,
Sharoyan E. G.,
Wósjcik M.,
Zbieranowski W. T.
Publication year - 1980
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.2221020122
Subject(s) - lutetium , yttrium , ion , crystallography , materials science , aluminium , symmetry (geometry) , rare earth , chemistry , metallurgy , oxide , geometry , mathematics , organic chemistry
ESR of Mo 3+ ions and NMR of 27 Al nuclei is investigated in mixed single crystals of yttrium‐lutetium‐aluminum garnets (Y 1 − x Lu x ) 3 Al 5 O 12 , where O ≦ x ≦ 1. Several new centres of Mo 3+ and 27 Al compared with Y 3 Al 5 O 12 and Lu 3 Al 5 O 12 single crystals are revealed associated with symmetry and crystalline field parameter changes at isomorphous substitution of Y 3+ ions in the rare‐earth sublattice of the garnet by those of Lu 3+ . Symmetry, nearest coordination, and parameters of spin‐Hamiltonians are estimated concerning all of Mo 3+ and 27 Al centres in (Y 1 − x Lu x ) 3 Al 5 O 12 , at x < 0.15.
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