DocumentCode :
3560115
Title :
Magnetic and Microwave Properties of Sm-Doped SrFe 
O 
Single Crystals
Author :
Jalli, Jeevan ; Hong, Yang-Ki ; Gee, Sung-Hoon ; Bae, Seok ; Lee, Jaejin ; Sur, J.C. ; Abo, Gavin S. ; Lyle, Andrew ; Lee, Sung-Ik ; Lee, Hwachol ; Mewes, Tim
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Alabama, Tuscaloosa, AL
Volume :
44
Issue :
11
fYear :
2008
Firstpage :
2978
Lastpage :
2981
Abstract :
Samarium (Sm) doped M-type strontium ferrite single crystals have been successfully grown from melts using a flux system of SrCO3 and Na2CO3. The crystals exhibited the typical hexagonal ferrite growth habit with a plate-like geometry, and the largest crystals obtained are of 10 mm in length and 3-4 mm in thickness, respectively. It was observed that the saturation magnetization and anisotropy field are greatly affected by the doping concentration of Sm. A saturation magnetization (sigmas) of 69.8 emu/g and an anisotropy field (H k) of 25 kOe was achieved. Room temperature FMR measurements show 85 Oe of linewidth (DeltaH) at 53 GHz.
Keywords :
crystal growth from melt; doping; ferrimagnetic resonance; magnetic anisotropy; samarium; strontium compounds; Na2CO3; SrCO3; SrFe12O19:Sm; anisotropy field; crystal growth from melt; doping concentration; ferrimagnetic resonance; hexagonal ferrite growth; m-type strontium ferrite single crystal; magnetic properties; microwave properties; plate-like geometry; saturation magnetization; size 10 mm; size 3 mm to 4 mm; temperature 293 K to 298 K; Ferrimagnetic resonance (FMR); hexagonal strontium ferrite; millimeter wave devices;
fLanguage :
English
Journal_Title :
Magnetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9464
Type :
jour
DOI :
10.1109/TMAG.2008.2001339
Filename :
4717453
Link To Document :
