Formation and characterization of high-density Fe cluster-assembled films with soft magnetic behaviors
The European Physical Journal D - Atomic, Molecular, Optical and Plasma Physics - Tập 34 - Trang 173-176 - 2005
Tóm tắt
High-density, magnetically soft Fe cluster-assembled
films were obtained at room temperature by an energetic cluster deposition.
Size-monodispersed Fe clusters with the mean cluster size d = 9, 13 and 16 nm
were produced using a plasma-gas-condensation technique. Ionized clusters in
cluster beam were accelerated electrically and deposited onto the substrate
together with neutral clusters from the same cluster source. The morphology,
microstructure and magnetic properties of the cluster-assembled films have
been studied by an atomic force microscopy, scanning electron microscopy,
transmission electron microscopy, and superconducting quantum interference
device magnetometer. By increasing the impact energy of the ionized clusters
up to 0.6 eV/atom, the Fe cluster-assembled film has a packing fraction of
0.86±0.03, and reveals a soft magnetic behavior. In addition, it is
found that oxidization of the cluster-assembled films is remarkably
suppressed with the increase in the density of the films.
Tài liệu tham khảo
G. Herzer, IEEE Trans. Magn. 26, 1397 (1990)
H. Gleiter, Progr. Mat. Sci. 33, 223 (1988)
R. Birringer, U. Herr, H. Gleiter, Suppl. Trans. Jpn Inst. Matels 27, 43 (1986)
Y. Sasaki, K. Shiozawa, H. Tanimoto, Y. Iwamoto, E. Kita, A. Tasaki, Mater. Sci. Eng. A 217/218, 344 (1996)
Y. Sasaki, M. Hyakkai, E. Kita, A. Tasaki, H. Tanimoto, Y. Iwamoto, J. Appl. Phys. 81, 4736 (1997)
H. Haberland, M. Karrais, M. Mall, Y. Thurner, J. Vac. Sci. Technol. A 10, 3266 (1992)
H. Haberland, M. Mall, M. Moseler, Y. Qiang, T. Reiners, Y. Thurner, J. Vac. Sci. Technol. A 12, 2925 (1994)
H. Haberland, Z. Insepov, M. Moseler, Phys. Rev. B 51, 11061 (1995)
P. Melinon, V. Paillard, V. Dupuis, A. Perez, P. Jensen, A. Hoareau, J.P. Perez, J. Tuaillon, M. Broyer, J.L. Vialle, M. Pellarin, B. Baguenard, J. Lerme, Int. J. Mod. Phys. B 9, 339 (1995)
S. Yamamuro, K. Sumiyama, K. Suzuki, J. Appl. Phys. 85, 483 (1999)
D.L. Peng, H. Yamada, T. Hihara, T. Uchida, K. Sumiyama, Appl. Phys. Lett. 85, 2935 (2004)
I. Yamada, G.H. Takaoka, Jpn J. Appl. Phys. 32, 2121 (1993)
S. Iwatsubo, T. Takahashi, M. Naoe, Thin Solid Films 281-282, 484 (1996)
S. Iwatsubo, M. Naoe, J. Appl. Phys. 93, 7193 (2003)