Dynamic magnetic information storage or retrieval – Head – Magnetoresistive reproducing head
Patent
1999-05-18
2000-08-29
Letscher, George J.
Dynamic magnetic information storage or retrieval
Head
Magnetoresistive reproducing head
G11B 539
Patent
active
061117293
ABSTRACT:
A magnetoresistance effect element provided with a spin valve film composed of a first magnetic layer formed on a metallic buffer layer, a middle non-magnetic layer formed on the first magnetic layer, and a second magnetic layer formed on the non-magnetic layer, has an atomic-diffusion barrier layer whose average thickness is 2 nm or less formed in the interface between the metallic buffer layer and the first magnetic layer. Or a magnetoresistance effect element provided with a spin valve film composed of a first magnetic layer composed of a laminated film of a magnetic undercoat layer and a ferromagnetic layer, a middle non-magnetic layer formed on the first magnetic layer, and a second magnetic layer formed on the middle non-magnetic layer, has an atomic-diffusion barrier layer whose average thickness is 2 nm or less formed in the interface between the magnetic undercoat layer and the ferromagnetic layer.
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Fukuzawa Hideaki
Iwasaki Hitoshi
Kamiguchi Yuzo
Sahashi Masashi
Saito Akiko
Kabushiki Kaisha Toshiba
Letscher George J.
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