In this paper is presented the research work in Fiber Optic Sensors currently being developed at

No abstract

The spin resonance of Mn'+ impurity modes in the layered antiferromagnet Fear2 was studied in the frequency range 500-700 MHz. The Mn NMR signals are found to have large enhancements due to the admixture of electronic spin transitions. Measurements of the frequency spectrum yield accurate values for the hyperfine, nuclear dipole, and nuclear quadrupole interaction parameters for the Mn impurity. The measured temperature dependence of the linewidth of the NMR modes in the range 1.5-3.5 K can be explained by two-magnon scattering of the FeBr, host.

No abstract