Parametric Investigations at the Head-Disk Interface of Thermal Fly-Height Control Sliders in Contact

Table 2

Disk roughness parameters and its effect on TDP/clearance gain.

Disk	𝑅𝑝; nm	𝑅𝑞; nm	𝑅𝑣; nm	𝛿TDP; mW	Clearance gain; nm
A	2.02	0.49	1.87	0.08	0.01
B	1.89	0.36	1.47	0.97	0.12
C	1.00	0.24	1.11	6.71	0.84