Open AccessTHE GROWTH AND MAGNETIC PROPERTIES OF SINGLE CRYSTAL In-SUBSTITUTED BiCaVFe-FERRIMAGNETIC GARNET
Author(s) -
MAGNETIC CRYSTAL GROUP
Publication year - 1976
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.25.373
Subject(s) - condensed matter physics , materials science , magnetization , laser linewidth , ferrimagnetism , curie temperature , single crystal , ferromagnetic resonance , saturation (graph theory) , flux method , relaxation (psychology) , ferromagnetism , magnetic field , nuclear magnetic resonance , physics , optics , psychology , social psychology , laser , mathematics , quantum mechanics , combinatorics
Single crystals of the ferrimagnetie garnet Bi3-2xCa2xFe5-x-yInyVxO12 are grown by the flux method, with x = 1.35 ±0.02, y = 0-0.388. Single crystals having a dimension greater then 10mm and few inclusions can be obtained for all materials with different. In content by the technology described in this paper. The Curie temperature of all these materials is 10-30℃ higher then that of Ga-YIG with the same magnetization. The magnetic anisotropie constant drops rapidly with increase in number of the nonmagnetic indium ions. The anisotropie field falls slightly at first and then increases gradually with decrease from 530 to 200 Gauss of the saturation magnetization. The ferromagnetic resonance linewidth for the X band region increases with decreasing magnetization. It seems that there exists a relaxation mechanism which is connected with the dipole-n'arrowed model. The linewidth is about 1 to 4 Oe for the materials with the above magnetization. The best materials obtained possess an anisotropie field of 16 Oe and a linewidth of 0.7 Oe. The above results show that these materials can be employed in low frequency microwave devices.