Electrodeposited epitaxial Fe{sub 100-x}Co{sub x} films on n-GaAs (100)

Journal Article · Thu Feb 15 04:00:00 EST 2007 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PHYSREVB.75.085304· OSTI ID:20976713

Mallett, J J; Svedberg, E B; Vaudin, M D; Bendersky, L A; Shapiro, A J; Egelhoff, Jr, W F; Moffat, T P ^[1]

---

1. Materials Science and Engineering Laboratory, National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States)

The electrodeposition of epitaxial cube-on-cube Fe{sub 100-x}Co{sub x} films onto (100)-oriented n-GaAs from ferrous ammonium sulfate solutions containing various concentrations of cobalt sulfate is described. The cobalt composition in a series of 400-nm-thick films was found to vary in proportion to the concentration of cobalt sulfate in the electrolyte and six compositions in the range from 0 to 74% were deposited. Epitaxial (100)-oriented bcc films were produced throughout this range, as suggested by symmetrical x-ray diffraction and confirmed by x-ray pole figure measurements. Rocking curve measurements yielded data that could be fitted to the sum of a Lorentzian and a Gaussian, corresponding to the (200) Fe{sub 100-x}Co{sub x} planes and to a residual contribution from GaAs (400), respectively. The full width at half maximum obtained for the film Lorentzians varied from 0.44 deg. to 0.90 deg. and was apparently uncorrelated with composition. X-ray (211) pole figure measurements revealed a high degree of twinning of the (100) bcc Fe{sub 100-x}Co{sub x} consistent with a recent study of Fe films electrodeposited on n-GaAs.

• OSTI ID: 20976713
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Journal Name: Physical Review. B, Condensed Matter and Materials Physics Journal Issue: 8 Vol. 75; ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
AMMONIUM SULFATES
BCC LATTICES
COBALT ALLOYS
COBALT SULFATES
ELECTRODEPOSITION
EPITAXY
FERROMAGNETIC MATERIALS
FILMS
GALLIUM ARSENIDES
IRON ALLOYS
LAYERS
NEUTRON DIFFRACTION
TWINNING
X RADIATION
X-RAY DIFFRACTION