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Epitaxial Growth Of Nickel Nanocrystals By Domain Matching Epitaxy

Published online by Cambridge University Press:  01 February 2011

Jagdish Narayan
Jagdish Narayan*
Affiliation:
National Science Foundation Center for Advanced Materials and Smart Structures, Department of Materials Science and Engineering, North Carolina State University, Raleigh, North Carolina, NC 27695-7916, USA.
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Abstract

We show that epitaxial nickel (fcc structure, lattice constant of 0.3528nm) nanocrystals are formed inside magnesium oxide (sodium chloride structure, lattice constant of 0.4201nm) matrix, where the misfit ranges from 3.0% to 31.3% on different interfaces. By controlling the annealing conditions, we obtained two distinct epitaxial morphologies: (1) cube-on-cube with <100>Ni // <100> MgO with a misfit of about 18.0%; and (2) <112> morphology with <112> // <002> MgO (misfit 31.3%); <111> Ni // <200> MgO (misfit 3.0%); and <110> Ni // <020> MgO (misfit 17.0%). These results on epitaxial growth of nickel on MgO with misfit ranging from 3.0% to 31.3% are consistent with the domain matching epitaxy paradigm (DME), where integral multiple of lattice planes match across the film-substrate interface. The lattice planes include all the planes in a crystal structure, not just the diffraction planes involved in the X-ray, electron and neutron scattering. The residual misfit away from the integral multiples is accommodated by the principle of domain variation, where two or three sets of domains alternate with a certain frequency to minimize the misfit close to zero. The epitaxy in the DME paradigm is defined as the film having a fixed orientation which could be the same under certain conditions. From these results on Ni epitaxy, the dominant role of planes and matching of integral multiples of planes to accommodate small to large misfit are clearly established according to the DME paradigm.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 877: Symposium S – Magnetic Nanoparticles and Nanowires , 2005 , S4.7
Copyright
Copyright © Materials Research Society 2005

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References

(1) Hughes, A. E. and Jain, S. C., Adv. Phys. 28, 279(1979).Google Scholar
(2) Narayan, J., Chen, Y., and Moon, R. M., Phys. Rev. Lett. 46, 149(1981); J. Narayan and Y. Chen, US Patent 4,376,755(1983).Google Scholar
(3) Narayan, J., Chen, Y., Moon, R. M., and Carpenter, R.W., Phil. Mag. 49, 287(1984).Google Scholar
(4) Narayan, J. and Chen, Y., Phil. Mag. 49, 475 (1084).Google Scholar
(5) Zhou, H., Kumar, D., Kvit, A., and Narayan, J., J. Appl. Phys. 94, 4841(2003).Google Scholar
(6) Narayan, J. and Larson, B.C., J. Appl. Phys. 93, 278(2003).Google Scholar
(7) Narayan, J., Met and Mat Trans B, 36B, 5(2005).Google Scholar
(8) Barnett, S. A., Madan, A., Kim, I., and Martin, K., MRS Bulletin 28(3), 169(2003).Google Scholar
(9) Kwo, J., Hong, M., and Nakahara, S., J. Appl. Phys. 49, 319(1986).Google Scholar
(10) Narayan, J. and Tiwari, A., Nanosci, J. and Nanotech. (September 2004).Google Scholar
(11) Narayan, J. and Tiwari, A., US Patent: US 2004/0119064 A1 (June 24, 2004).Google Scholar