Non-centrosymmetric structures in an M4Ynhexagonal ferrite series
Authors:
- J. A. KohnJKJ. A. Kohn
- D. W. EckartDED. W. Eckart
- 1 April 1967
- journal article
- research article
- Published by Walter de Gruyter GmbH in Zeitschrift für Kristallographie
- Vol. 124 (1-2) , 69-76
Abstract
Further single-crystal x-ray diffraction studies of flux-grown hexagonal ferrites containing Zn, Zn+Mn, or Co have shown a third series of mixed-layer structures, M4Yn, to supplement the earlier MnS and M2Yn groups. The M4Yn series permits non-centrosymmetry; of the nine phases observed, five are non-centric, R3m (three structures), P3m1 and P[unk]m2. The latter was almost uniquely determined from symmetry considerations. Stacking sequences were confirmed by 00·l structure-factor calculations. A nomenclature system for quasi-polytypic mixed-layer structures is discussed.Keywords
This publication has 1 reference indexed in Scilit:
- New Mn-Substituted Hexagonal FerritesJournal of Applied Physics, 1965