Single Crystals of Cubic Ferrite Containing Only Fe3+ as Magnetic Ions

✍ Scribed by Prof. Dr. E. Rezlescu; N. Rezlescu; M. L. Craus; C. Pasnicu; L. Rezlescu

• Book ID: 102129225
• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 424 KB
• Volume: 31
• Category: Article
• ISSN: 0232-1300
• DOI: 10.1002/crat.2170310605

✦ Synopsis

Single Crystals of Cubic Ferrite Containing Only Fe3+ as Magnetic Ions

Single crystals of LiFeSOs and Y3Fes012 are of considerable interest for microwave applications. These were grown by spontaneous crystallization from fluxed melts by slow cooling. The quality of the obtained crystals were analyzed by X-ray diffraction and by measuring of the characteristic parameters (saturation magnetization us, Curie temperature Tc, density D, hardness Hv). Although the both ferrites involve Fe3+ as the only magnetic ions which are responsible for the magnetic properties of these ferrites, several essential differences are found attributing to the particularity of their crystalline structure.

Les cristaux de LiFesOs Y3Fe5012 suscitent un considerable inter& pour les applications dans le domain de microondes. Le developpement des cristaux est provoqu6 par la cristalisation spontane, pendant le procesus de m6lange des flux fondus, en regime de refroidissemnet lent. La qualit6 de ces cristaux ainsi obtenus a 6t6 analishe a l'aide de la diffraction des rayons X et du messurement des parametres caracthristiques (magnetisation de saturation os, temphrature Curie Tc, d6nsitB D, dur-et6 Hv). Quique les deux ferrites impliquent les Fe3+ comme les seuls ions rbponsables pour les proprietbs magnktiques, beaucoup d'autres differences sont trouvhes provenant de la particularit6 de leur structure cristalline.