Probability model and its application on the interaction of nano-spaced slider/disk interface

The effect of surface roughness is crucial for contact recording and proxim ity recording. In this paper a probability model. is developed for investig ation of the influence of surface roughness on flying performance and the c ontact force of the slider. Simulations are conducted for both the contact recording slider and the proximity recording slider, and the results are we ll coordinated with the reported experimental results and the self-conducte d experimental results. Studies are further extended to the characterizatio n of the roughness of the air bearing surface and the disk surface that may support head/disk spacing between 5 nm and 15 nm.