Microwave Loss in Ultralow-Linewidth Substituted Garnets
- 1 June 1972
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 43 (6), 2872-2874
- https://doi.org/10.1063/1.1661608
Abstract
Linewidth measurements from 77 to 300°K and room-temperature off-resonance effective linewidth data at 9 GHz show that the microwave losses in ultralow-loss Ca–V–In substituted YIG and Ca–Ge–In–YIG are completely resolvable in terms of known processes and that only a small part of the loss is due to anisotropy broadening. For the lowest linewidth of 2 Oe observed to date (Ca–Ge–In–YIG), about 0.5 Oe is due to rare-earth impurities, 0.9 Oe is from porosity broadening, and 0.2 Oe is from anisotropy. The remaining 0.4 Oe contribution is comparable to expected ``intrinsic'' single-crystal linewidths.Keywords
This publication has 8 references indexed in Scilit:
- Ultrasensitive Technique for Microwave Susceptibility Determination Down to 10−5Review of Scientific Instruments, 1972
- Magnetic Anisotropy of Vanadium-Indium-Substituted YIGJournal of Applied Physics, 1970
- Effect of Grain Size on the Microwave Properties of Polycrystalline Yttrium Iron GarnetJournal of Applied Physics, 1970
- Calcium-vanadium-indium substituted yttrium-iron-garnets with very low linewidths of ferrimagnetic resonanceMaterials Research Bulletin, 1969
- Effective Linewidth due to Porosity and Anisotropy in Polycrystalline Yittrium Iron Garnet and Ca-V-Substituted Yittrium Iron Garnet at 10 GHzPhysical Review B, 1969
- Amplification of Magnetostatic Surface Waves by Interaction with Drifting Charge Carriers in Crossed Electric and Magnetic FieldsJournal of Applied Physics, 1969
- Linewidth Reduction through Indium Substitution in Calcium-Vanadium GarnetsJournal of Applied Physics, 1968
- Ferrimagnetic Resonance Relaxation in Rare-Earth Iron GarnetsPhysical Review B, 1964