Method and apparatus for recording and reproducing magnetically,

Details Method and apparatus for recording and reproducing magnetically, Method and apparatus for recording and reproducing magnetically,

1998-01-21

2000-07-11

Faber, Alan T.

Dynamic magnetic information storage or retrieval

General recording or reproducing

360113, 360 75, 369126, G11B 502

Patent

active

060881798

ABSTRACT:
A method of and an apparatus for magnetic recording and reproducing comprising: detecting a tunnel current generated by a spin tunnel effect caused between a conductive magnetic recording film, in which a signal is recorded as a difference of magnetizing directions, and a conductive magnetic film, which is located on the magnetic head and magnetized in a predetermined direction; and reproducing the above signal recorded in the conductive magnetic recording film, to thereby obtain a high recording density and a reproducing signal having a high frequency.

REFERENCES:
patent: 5375087 (1994-12-01), Moreland et al.
patent: 5949600 (1999-09-01), Akiyama et al.
"Magnetic force microscopy with 25 nm resolution" by Hobbs et al, Appl. Phys. Lett., Nov. 1, 1989, pp. 2357-2359.
"3 Gb/in.sup.2 Recording Demonstration with Dual Element Heads & Thin Film Disks" by Trong et al, IEEE Transactions on Magnetics, Jan., 1996, pp. 7-12.
Nikkei Electronics Apr. 1997, No. 686, pp. 125-129.
"High-Resolution, Tunneling-Stabilized Magnetic Imaging and Recording" J. Moreland et al, Appl. Phys. Lett. 57(3), Jul. 1990, pp. 310-312.
"Characteristics of High-Density Recording Using a Single-Layer Perpendicular Medium and a Merged MR Head", Sonobe et al, IEEE Tran. Mag. 32 (1996), pp. 3801-3804.

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