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Phys. Rev. Lett. 54, 1051–1054 (1985)

[Issue 10 – 11 March 1985 ]

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Stabilization of bcc Co via Epitaxial Growth on GaAs

G. A. Prinz

Naval Research Laboratory, Washington, D.C. 20375

A new metastable phase of cobalt—body-centered cubic—has been synthesized by use of molecular-beam epitaxial growth to stabilize the crystal structure. Large (1 x 1 cm²) films have been grown on (110) GaAs and characterized by high-energy electron diffraction, Auger analysis, x-ray diffraction, magnetometry, spin-polarized photoemission, and ferromagnetic resonance. The results indicate a ferromagnetic material very similar to alpha -Fe both electronically and magnetically, with a metastable lattice constant a₀=2.827 Å. This technique provides a general approach for the realizing of metastable phases.

©1985 The American Physical Society

URL: http://link.aps.org/abstract/PRL/v54/p1051
DOI: 10.1103/PhysRevLett.54.1051
PACS: 68.55.+b, 64.60.My, 75.50.Cc, 81.30.Bx

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References

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