Answers are grounded in this paper and cite their sources.
Difficulties exist in identifying the intergranular exchange coupling constant (h/sub e/) via magnetic properties measurements and TEM observation of actual media. The h/sub e/ was estimated to be 0.13 for CoCr/sub 12/Pt/sub 5/TaNb/CrMo and 0.115 for CoCr/sub 19/Pt/sub 5/TaNb/CrMo via micromagnetic simulation. The other parameters, which are the magnetostatic coupling constant (h/sub m/) and the grain geometry, were obtained from measuring the magnetic properties and observing the microstructure of actual media by TEM. The h/sub m/ is 0.11 for CoCr/sub 12/Pt/sub 5/TaNb and 0.09 for CoCr/sub 19/Pt/sub 5/TaNb. The parameters were ascertained to be suitable by comparing the MFM images of the DC demagnetized state and the medium noise dependence of the linear density between the micromagnetic simulation and the experiments.
No takes yet. Share an insight, caveat, or question.
Akimoto et al. (1998) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: