Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1995-11-06
1997-09-09
Resan, Stevan A.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
428329, 428693, 428701, 428900, G11B 566, B32B 3300
Patent
active
056654650
ABSTRACT:
Articles according to the invention exemplarily comprise a magnetically hard oxide layer in contact with a magnetically soft oxide layer, with spins in the latter at room temperature exchange-coupled to the (oriented) spins in the former. Exemplarily both materials are ferrimagnetic spinel-type oxides, e.g., CoFe.sub.2 O.sub.4 /(Mn, Zn)Fe.sub.2 O.sub.4. Material combinations according to the invention can be advantageously used in high frequency circuit components such as inductors, since the magnetically soft layer can be in a substantially single domain state even after exposure to a magnetic field of considerable strength, e.g., up to about 500 Oe.
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"Handbook of Microwave Ferrite Materials", edited by Wilhelm H. von Aulock, Academic Press, New York 1965.
Gyorgy, deceased Ernst Michael
Phillips Julia Mae
Suzuki Yuri
van Dover Robert Bruce
Lucent Technologies - Inc.
Pacher Eugen E.
Resan Stevan A.
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