Ferromagnetic thin films

Details Ferromagnetic thin films Ferromagnetic thin films

1994-01-04

1994-12-20

Larkins, William D.

Stock material or miscellaneous articles

Structurally defined web or sheet

Including components having same physical characteristic in...

428642, 428649, 428688, 428689, 428692, 428693, 428694R, 428697, 428699, 428212, 427502, 427548, 427549, 365 66, 365173, 365158, 117105, 117939, 117954, B32B 702, B32B 900, B32B 1900, G11C 1100

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active

053744721

ABSTRACT:
A ferromagnetic .delta.-Mn.sub.1-x Ga.sub.x thin film having perpendicular anisotropy is described which comprises: (a) a GaAs substrate, (b) a layer of undoped GaAs overlying said substrate and bonded thereto having a thickness ranging from about 50 to about 100 nanometers, (c) a layer of .delta.-Mn.sub.1-x Ga.sub.x overlying said layer of undoped GaAs and bonded thereto having a thickness ranging from about 20 to about 30 nanometers, and (d) a layer of GaAs overlying said layer of .delta.-Mn.sub.1-x Ga.sub.x and bonded thereto having a thickness ranging from about 2 to about 5 nanometers, wherein x is 0.4 .+-.0.05.

REFERENCES:
patent: 3949387 (1976-04-01), Chaudhari et al.
patent: 3965463 (1976-06-01), Chaudhari et al.
patent: 4968564 (1990-11-01), Tada et al.
patent: 5169485 (1992-12-01), Allen, Jr. et al.
Sands et al., "Epitaxial Ferromagnetic .tau.-MnAl Films on GaAs", Appl. Phys. Lett. 57(24), Dec. 10, 1990, pp. 2609-2611.
Bither et al. "Magnetic Tetragonal .delta. Phase in the Mn-Ga Binary", J. Appl. Phys. 36, (1965), pp. 1501-1502.
Cheeks et al. "Magnetic and Magneto-Optic Properties of Epitaxial Ferromagnetic .tau.-MnAl/(Al,Ga)As Heterostructures", Appl. Phys. lett. 60 (11), Mar. 16, 1992, pp. 1393-1395.

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