公开(公告)号：EP0032740A3

公开(公告)日：1982-01-27

申请号：EP81100319

申请日：1981-01-16

Applicant: OLYMPUS OPTICAL CO., LTD.

Inventor： Sakurai, Yoshifumi

IPC: G11B05/38 ,  G11B05/42

CPC classification number: G11B5/372 ,  G11B5/29 ,  G11B5/4946

Abstract: Disclosed is a multichannel magnetic head having magnetic circuits for respective channels, each positioned to traverse a magnetic flux (φ) to be detected, and a Hall element disposed in the magnetic circuits and used as magnetic-electric converter. The Hall element (14) is an amorphous magnetic thin film which consists essentially of an alloy containing a rare earth element (e.g. Gd) and a transition metal (e.g. Co). To the amorphous magnetic thin film (14) there are connected to a pair of current terminals (20, 22) and Hall voltage terminals (16)-16 4 ). The Hall voltage terminals are provided in the same numbers as the channels or the magnetic circuits (7 1 -7 4 ).