Single-turn perpendicular thin film heads

Nakamura, Koshi; Echigo, N.; Yohda, H.; Mitani, S.; Kaminaka, N.

doi:10.1109/tmag.1987.1065361

Cited by 14 publications

(2 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Some thin-film single-pole heads with a small number of coil-turns have been proposed [3], [4] to realize high head efficiency by shortening the magnetic circuit path. In this paper, a single pole head with a thin film coil was investigated to provide information on the performance of a practical flying perpendicular head.…”

Section: Introductionmentioning

confidence: 99%

Extremely low inductance thin-film single-pole head on flying slider

et al. 1998

View full text Add to dashboard Cite

A novel single-pole head on a flying slider is presented as a high frequency writing head. The main pole of the head is driven with three thin-film conductor layers to have a short magnetic circuit path. Thus, a low inductance of around 10 nH and a high writing sensitivity o f less than 0.03 AT,, is obtained. The writing field distribution is shown to be the same as a regular single-pole head by computer simulations. The recording performance of the head is examined and the high writing sensitivity is demonstrated.Index terms-perpendicular magnetic recording, inductive head, single-pole head, high frequency

show abstract

Section: Introductionmentioning

confidence: 99%

Extremely low inductance thin-film single-pole head on flying slider

et al. 1998

View full text Add to dashboard Cite

show abstract

“…This means that large output will be obtained even in narrow track recording when a highly sensitive head is employed. Since the sensitivity of a single pole head depends on flux path length, one-turn coil single pole heads were proposed to shorten the flux path length [3], [4]. The former was mostly used for recording [3], and the latter was accompanied with a 1:4 close to the interface of head and media for improving the efficiency, was investigated.…”

Section: Introductionmentioning

confidence: 99%

Highly sensitive single pole head with laminated thin film coils

1995

View full text Add to dashboard Cite

A novel single pole head with laminated thin film coils is proposed in this paper. Laminated thin film coils, between which a main pole is laid, are put very close to the media to capture most of the reproduced flux. In addition, a ferrite return yoke is placed just under the lower conductor to shorten the head magnetic flux path. These approaches bring high read/write efficiency and small head noise owing to low head impedance. With only one or twoturn coils, CO-Cr/Fe-Ni-Nb double-layered media were saturated at magneto-motive force of 0.05 ampere-turn, and overwrite of the two-turn head reached 35 dB. High normalized output of 1000 nVPJ!fm turn m/s was obtained. Much higher recording and reproducing sensitivity than ordinary inductive single pole heads was achieved.

show abstract

Fabrication and characterization of thin films with perpendicular magnetic anisotropy for high-density magnetic recording

Chen

1991

J Mater Sci

View full text Add to dashboard Cite

Single-turn perpendicular thin film heads

Cited by 14 publications

References 2 publications

Extremely low inductance thin-film single-pole head on flying slider

Extremely low inductance thin-film single-pole head on flying slider

Highly sensitive single pole head with laminated thin film coils

Fabrication and characterization of thin films with perpendicular magnetic anisotropy for high-density magnetic recording

Contact Info

Product

Resources

About