Experimental Study of Slider-Disk Interaction in a Nanometer Spaced Head-Disk Interface

Bo LIU; Yao-Long ZHU; Ying-Hui LI

Experimental Study of Slider-Disk Interaction in a Nanometer Spaced Head-Disk Interface

Bo LIU, Yao-Long ZHU, Ying-Hui LI

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A head-disk spacing tester that includes the effect of lubricant will be necessary if the slider-disk interaction is to be considered. The interaction and interaction induced spacing variation can be quantitatively characterized by optical method and by replacing the functional disk media with a glass disk covered with a carbon layer and a lubricant layer of the same materials and the same layer thickness as the functional disk media. This paper reports a tester configuration based on that concept. Experimental investigations into the nanometer spaced head-disk interface with such a setup are presented also. Results indicate that the lubricant plays an important role in slider-disk interaction and the vibration of the slider-disk interface. Two types of interface vibration were noticed: contact vibration and bouncing vibration. For the bouncing case, the natural frequency of air-bearing and its fold frequencies will be excited and air-bearing plays more important role in the determination of the slider vibration, comparing with the contact-vibration case.

Publication: IEICE TRANSACTIONS on Electronics Vol.E82-C No.12 pp.2148-2154

Publication Date: 1999/12/25

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Type of Manuscript: Special Section PAPER (Special Issue on Information Storage Technologies for the 21st Century)

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Bo LIU, Yao-Long ZHU, Ying-Hui LI, "Experimental Study of Slider-Disk Interaction in a Nanometer Spaced Head-Disk Interface" in IEICE TRANSACTIONS on Electronics, vol. E82-C, no. 12, pp. 2148-2154, December 1999, doi: .
Abstract: A head-disk spacing tester that includes the effect of lubricant will be necessary if the slider-disk interaction is to be considered. The interaction and interaction induced spacing variation can be quantitatively characterized by optical method and by replacing the functional disk media with a glass disk covered with a carbon layer and a lubricant layer of the same materials and the same layer thickness as the functional disk media. This paper reports a tester configuration based on that concept. Experimental investigations into the nanometer spaced head-disk interface with such a setup are presented also. Results indicate that the lubricant plays an important role in slider-disk interaction and the vibration of the slider-disk interface. Two types of interface vibration were noticed: contact vibration and bouncing vibration. For the bouncing case, the natural frequency of air-bearing and its fold frequencies will be excited and air-bearing plays more important role in the determination of the slider vibration, comparing with the contact-vibration case.
URL: https://global.ieice.org/en_transactions/electronics/10.1587/e82-c_12_2148/_p

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@ARTICLE{e82-c_12_2148,
author={Bo LIU, Yao-Long ZHU, Ying-Hui LI, },
journal={IEICE TRANSACTIONS on Electronics},
title={Experimental Study of Slider-Disk Interaction in a Nanometer Spaced Head-Disk Interface},
year={1999},
volume={E82-C},
number={12},
pages={2148-2154},
abstract={A head-disk spacing tester that includes the effect of lubricant will be necessary if the slider-disk interaction is to be considered. The interaction and interaction induced spacing variation can be quantitatively characterized by optical method and by replacing the functional disk media with a glass disk covered with a carbon layer and a lubricant layer of the same materials and the same layer thickness as the functional disk media. This paper reports a tester configuration based on that concept. Experimental investigations into the nanometer spaced head-disk interface with such a setup are presented also. Results indicate that the lubricant plays an important role in slider-disk interaction and the vibration of the slider-disk interface. Two types of interface vibration were noticed: contact vibration and bouncing vibration. For the bouncing case, the natural frequency of air-bearing and its fold frequencies will be excited and air-bearing plays more important role in the determination of the slider vibration, comparing with the contact-vibration case.},
keywords={},
doi={},
ISSN={},
month={December},}

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TY - JOUR
TI - Experimental Study of Slider-Disk Interaction in a Nanometer Spaced Head-Disk Interface
T2 - IEICE TRANSACTIONS on Electronics
SP - 2148
EP - 2154
AU - Bo LIU
AU - Yao-Long ZHU
AU - Ying-Hui LI
PY - 1999
DO -
JO - IEICE TRANSACTIONS on Electronics
SN -
VL - E82-C
IS - 12
JA - IEICE TRANSACTIONS on Electronics
Y1 - December 1999
AB - A head-disk spacing tester that includes the effect of lubricant will be necessary if the slider-disk interaction is to be considered. The interaction and interaction induced spacing variation can be quantitatively characterized by optical method and by replacing the functional disk media with a glass disk covered with a carbon layer and a lubricant layer of the same materials and the same layer thickness as the functional disk media. This paper reports a tester configuration based on that concept. Experimental investigations into the nanometer spaced head-disk interface with such a setup are presented also. Results indicate that the lubricant plays an important role in slider-disk interaction and the vibration of the slider-disk interface. Two types of interface vibration were noticed: contact vibration and bouncing vibration. For the bouncing case, the natural frequency of air-bearing and its fold frequencies will be excited and air-bearing plays more important role in the determination of the slider vibration, comparing with the contact-vibration case.
ER -