EP0297689A2
Expired / Lapsed
EP
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Magneto-optic memory element
Assignee: Sharp Corp
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Filing: 1985-04-12
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Granted: —
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Expires: 2005-04-12
Abstract
Abstract A magneto-optic memory element includes a magneto-optic memory layer (16) mounted on a substrate (10) and sandwiched between a pair of transparent AlN dielectric layers (12, 14) which protect the memory layer (16) from oxygen and moisture. An alloy reflection film (18) is formed on one of the pair of transparent AlN dielectric layers in order to increase the apparent Kerr rotation angle produced by the magneto-optic memory element. The reflection film comprises aluminium and contains an element for preventing the formation of turbidity in the reflection layer, this element being palladium, platinum, or nickel.
Inventors
- 👤 Kenji Ohta
- 👤 Akira Takahashi
- 👤 Hiroyuki Katayama
- 👤 Junji Hirogane
- 👤 Yoshiteru Murakami
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-05 21:17
CPC Classifications
G; G11; G11B; G11B11/00; G11B11/10; G11B11/105; G11B11/10582; G11B11/10586; G11B11/10589; G11B11/10593; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10S430/00; Y10S430/146; Y10T; Y10T428/00; Y10T428/22; Y10T428/31504; Y10T428/31678
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
37 words
A magneto-optic memory element comprising: a substrate a magneto-optic memory layer, and a reflection layer, the reflection layer being an aluminium reflection layer containing an element for preventing the formation of turbidity in the aluminium reflection layer.
Claim 2
Dependent Claim
37 words
A magneto-optic memory element comprising: a substrate a magneto-optic memory layer, and a reflection layer, the reflection layer being an aluminium reflection layer containing an element for preventing the formation of turbidity in the aluminium reflection layer.
Claim 3
Dependent Claim
17 words
The magneto-optic memory element of claim 1, wherein the element is either palladium or platinum, or nickel.
References Cited (Backward Citations)
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