Magnetic materials with strong ferromagnetic precession properties and low damping factors. Navy SBIR FY2010.2 Sol No.: Navy SBIR FY2010.2 Topic No.: N102-167 Topic Title: Magnetic materials with strong ferromagnetic precession properties and low damping factors. Proposal No.: N102-167-0873 Firm: Spectrum Magnetics, LLC 1210 First State Blvd Wilmington, Delaware 19804-3561 Contact: Stoyan Stoyanov Phone: (302) 993-1070 Web Site: www.spectrum-magnetics.com Abstract: The proposed SBIR Phase I program is to establish a ferromagnetic resonance (FMR) measurement setup that is capable of characterizing the FMR spectrum with high sensitivity and over a broad frequency, as well as nonlinear behaviors at high microwave power. The proposed effort also includes modeling effort in order to predict the figure of merit (FOM) for high power microwave generation, which is related with damping constant and the critical rf magnetic field above from which nonlinear behavior emerges. Finally, we will also investigate the guidelines and experimental possibility to fabricate magnetic materials with optimized FOM. These studies will provide much needed measurement tools and guidelines for Phase II magnetic material development and optimization for high power microwave generation. Benefits: Technical success of this program is anticipated to generate at least two different commercialization opportunities including ferromagnetic resonance (FMR) spectrometers and novel magnetic materials for high power microwave applications. The DoD electronic system will benefit from the proposed FMR spectrometer which will assist the development of high power microwave weaponry. Broadband and high sensitivity spectrometers are highly desirable in university research and magnetic recording industries where the magnetic dynamics in a recording bit or memory cell must be characterized at microwave frequency. It is also anticipated that magnetic materials with low damping and a high critical field will be developed. In addition to emerging high power microwave applications, the high frequency magnetic materials are frequently used in microwave components such as filters, circulators, and isolators. Return