Super conducting thin-film magnetic head including a magnetoresi

Details Super conducting thin-film magnetic head including a magnetoresi Super conducting thin-film magnetic head including a magnetoresi

1988-07-12

1990-03-06

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Head

Hall effect

360126, 505872, G11B 530

Patent

active

049071157

ABSTRACT:
Thin-film magnetic head including a magnetoresistive element (1) and a face (9) for magnetically coupling the element with a magnetic recording medium. A magnetic yoke constituted by three layers (3, 5, 7) of a magnetically permeable material has a gap (13) which is bridged by the magnetoresistive element. A layer (15) of a superconducting material for improving the efficiency of the magnetic head is provided between the layers (3) and (5) and the element (1) on the one hand and the layer (7) on the other hand. For protection from external disturbing magnetic fields and reduction of stray flux a layer (43A, 43B, respectively) of a superconducting material is provided on the layers (3) and (5) and under the layer (7).

REFERENCES:
patent: 4679107 (1987-07-01), Imakoshi

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