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Structure and Bonding of Metallic Nanowires Prepared in Nanoporous Alumina Membranes Studied by EXAFS, XANES and HED

  • M. Kröll (a1), R. E. Benfield (a2), J. C. Dore (a2), D. Grandjean (a2) and G. Schmid (a3)...

Abstract

The structural properties of metallic nanowires prepared within the pores of nanoporous alumina membranes are investigated using EXAFS, XANES and High Energy X-Ray Diffraction (HED). Gold, silver, copper and iron nanowires show the same structure and atom-atom distances as the corresponding bulk metals. The structural properties of these metals do not change if the wire diameter is varied. Cobalt nanowires, however, show a size dependent mixture of fcc and hcp phases. The amount of fcc-Co, which in the bulk is only known as a high temperature modification, increases with decreasing wire diameter. This leads to interesting changes in the magnetic properties of Co nanowires.

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1 Tsuya, N., Saito, Y., Nakamura, H., Hayano, S., Furugohri, A., Ohta, K., Wakui, Y. and Tokushima, T., A perpendicular magnetic recording medium by alumite, J. Magn. Magn. Mater. 54–57, 1681 (1986)
2 Kawai, S. and Ishiguro, I., Recording Characteristics of Anodic Oxide Films on Aluminum Containing Electrodeposited Ferromagnetic Metals and Alloys, J. Electrochem. Soc. 123 (7), 1047 (1976)
3 O'Sullivan, J. P. and Wood, G.C., The morphology and mechanism of formation of porous anodic films on aluminium, Proc. Royal Soc. 317, 511 (1970)
4 Diggle, J. W., Downie, T. C. and Goulding, C. W., Anodic Oxide Films on Aluminum, Chem. Rev. 69, 365 (1969)
5 Masuda, H., Yamada, H., Satoh, M., Asoh, H., Nakao, M.. and Tamamura, T., Highly ordered nanochannel-array architecture in anodic alumina, Appl. Phys. Lett. 71 (19), 2770 (1997)
6 Paulus, P. M., Luis, F., Kröll, M., Schmid, G. and Jongh, L. J. de, Low-temperature study of the magnetization reversal and magnetic anisotropy of Fe, Ni, and Co nanowires, J. Magn. Magn. Mater. 224, 180196 (2001)
7 Hanaoka, T. A., Heilmann, A., Kröll, M., Kormann, H.-P., Sawitowski, T., Schmid, G., Jutzi, P., Klipp, A., Kreibig, U. and Neuendorf, R., Alumina Membranes – Templates for Novel Nanocomposites, Appl. Organomet. Chem. 12, 367 (1998)
8 Benfield, R. E., Grandjean, D., Kröll, M., Pugin, R., Sawitowski, T. and Schmid, G., Structure and Bonding of Gold Metal Clusters, Colloids, and Nanowires Studied by EAXFS, XANES, and WAXS, J. Phys. Chem. B 105, 1961 (2001)
9 Benfield, R. E., Grandjean, D., Dore, J. C., Wu, Z., Kröll, M., Sawitowski, T. and Schmid, G., Structure of Metal Nanowires in Nanoporous Alumina Membranes Studied by EXAFS and X-ray Diffraction, Eur. Phys. J. (submitted) (2001)
10 Kittel, C., Festkörperphysik
11 Donohue, J., The Structure of Elements, (Wiley, New York, 1974), p. 207
12 Strijkers, G. J., Dalderop, J. H. J., Broeksteeg, M. A. A., Swagten, H. J. M. and Jonge, W. J. M. de, Structure and magnetization of arrays of electrodeposited Co wires in anodic alumina, J. Appl. Phys. 86 (9), 51415145 (1999)
13 www.clupos.lth.se

Structure and Bonding of Metallic Nanowires Prepared in Nanoporous Alumina Membranes Studied by EXAFS, XANES and HED

  • M. Kröll (a1), R. E. Benfield (a2), J. C. Dore (a2), D. Grandjean (a2) and G. Schmid (a3)...

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