Static information storage and retrieval – Magnetic bubbles – Magnetic storage material
Patent
1979-12-26
1982-06-29
Silverman, Stanley S.
Static information storage and retrieval
Magnetic bubbles
Magnetic storage material
252 6257, 427128, 428692, 428900, H01F 137
Patent
active
043375219
ABSTRACT:
Devices based on epitaxial garnet layers which exhibit a substantial contribution to the magnetic anisotropy other than that attributable to the presence of magnetic rare earth ions are disclosed. These garnet layers are produced by introducing Co.sup.2+ or a species with 1, 2, 4, or 5 electrons in a 4d or 5d electronic orbital in the octahedral site of the garnet. It is possible to produce epitaxial garnets having low damping constants, as determined by resonance line widths on the order of 100 Oe, and K.sub.u 's on the order of 300,000 ergs/cm.sup.3.
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Krumme et al., "Control of the Uniaxial Magnetic Anisotropy in LPE-Grown Iron Garnet Films", Journal of Applied Physics, vol. 46, No. 6, 6/1975, pp. 2801-2803.
Blank Stuart L.
Gyorgy Ernst M.
LeCraw Roy C.
Luther Lars C.
Bell Telephone Laboratories Incorporated
Schneider Bruce S.
Silverman Stanley S.
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