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EP0033990A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Magnetic arrangement

Assignee: Koninklijke Philips NV
•
Filing: 1981-01-28
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Granted: —
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Expires: 2001-01-28
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Abstract

Abstract Translated from German Mit der Herstellung eines Substratmaterials in Form von Erdalkali-Gallat-Einkristallen ist es möglich geworden, monokristalline Bariumhexaferritschichten von hoher Qualität zu züchten. Diese dünnen Bariumhexaferritschichten auf den genannten Substraten sind als magnetische Anordnung aufgrund ihrer sehr grossen uniaxialen Anisotropie und ihrer kleinen Linienbreite hervorragend geeignet als passive Mikrowellenbauelemente, z.B. als Resonanzisolatoren oder Filter im Zentimeterwellenbereich oder als Bauelement in der Informationsspeichertechnik, z.B. in magnetischen Zylinderdomänenanordnungen, insbesondere im Bereich sehr kleiner (submicron)-Zylinderdomänen. With the production of a substrate material in the form of alkaline earth gallate single crystals, it has become possible to grow high quality monocrystalline barium hexaferrite layers. These thin barium hexaferrite layers on the substrates mentioned are particularly suitable as a magnetic arrangement due to their very large uniaxial anisotropy and their small line width as passive microwave components, for example as resonance isolators or filters in the centimeter wave range or as components in information storage technology, for example in magnetic cylinder domain arrangements, especially in the area small (submicron) cylinder domains.

Inventors

  • 👤 Dieter Dr. Mateika
  • 👤 Günter Bartels

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-24 23:21
CPC Classifications
C; C30; C30B; C30B29/00; C30B29/10; C30B29/16; C30B29/22; C30B15/00; H; H01; H01F; H01F10/00; H01F10/08; H01F10/10; H01F10/18; H01F10/20; H01F10/205; Y; Y10; Y10S; Y10S428/00; Y10S428/90; Y10S977/00; Y10S977/70; Y10S977/832; Y10S977/838; Y10S977/84; Y10S977/89; Y10S977/902; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265

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