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Structural Chemistry and Magnetism of Tb 3+ ‐β′′‐Alumina (Tb 0.46 Al 10.62 Mg 0.38 O 17 )
Author(s) -
Soetebier Frank,
Urland Werner
Publication year - 2002
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/1099-0682(200207)2002:7<1673::aid-ejic1673>3.0.co;2-f
Subject(s) - chemistry , terbium , magnetism , crystallography , trigonal crystal system , diffraction , ion , crystal structure , condensed matter physics , optics , physics , organic chemistry
The structure of completely exchanged Tb 3+ ‐β′′‐Al 2 O 3 (Tb 0.46 Al 10.62 Mg 0.38 O 17 ) crystals has been investigated by single crystal X‐ray diffraction methods at room temperature [trigonal, R $\bar 3$ m , Z = 3, a = 560.91(8) pm, c = 3330.3(8) pm]. The terbium ions are found to occupy BR (49.2%) and mO positions (50.8%) in nearly the same amount. The structural results are discussed in relation to magnetic measurements on crushed single crystals, where ligand field calculations applying the angular overlap model have been taken into account. (© Wiley‐VCH Verlag GmbH, 69451 Weinheim, Germany, 2002)