Magnetic properties of granular CoCrPt:SiO 2 thin films deposited on GaSb nanocones
Magnetic properties of granular CoCrPt:SiO 2 thin films deposited on GaSb nanocones
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GaSb 纳米锥上沉积的粒状 CoCrPt:SiO 2 薄膜的磁性能
DOI:
10.1088/0957-4484/25/8/085703
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发表时间:
2014
期刊:
影响因子:
3.5
通讯作者:
M. Albrecht
中科院分区:
文献类型:
--
作者:
D. K. Ball;K. Lenz;M. Fritzsche;G. Varvaro;S. Günther;P. Krone;D. Makarov;A. Mücklich;S. Facsko;J. Fassbender;M. Albrecht
We report on the effect of microstructure and geometrically induced modifications of the magnetic properties of granular CoCrPt: SiO 2 films with weakly interacting magnetic grains deposited on pre-structured GaSb nanocone templates fabricated by an ion erosion technique. By tuning the irradiation conditions, nanocone patterns of different cone sizes were prepared (from 28 to 120 nm in diameter and 32 to 330 nm high, respectively). The influence of the intergranular exchange coupling was also investigated by varying the SiO 2 content from 8 to 12 at.%. Deposition of CoCrPt: SiO 2 on samples with small nanocones leads to a close magnetic grain packing, which results in the formation of extended magnetic domains larger than the average distance between the GaSb cones. In contrast, on larger nanocones, the magnetic coating grows on the side-walls, with a large separation between neighboring cones, leading to magnetic single-domain regions, which are correlated to the underlying structure. Magnetometry indicates that both remanence and coercivity decrease with increasing cone size and/or SiO 2 content due to a combined effect of the angular distribution of the magnetic easy axis of the grains and the intergranular exchange coupling strength.
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影响因子:
4
作者:
Hellwig, O.;Bosworth, J. K.;Ruiz, R.
通讯作者:
Ruiz, R.
DOI:
--
发表时间:
2009
期刊:
影响因子:
--
作者:
A. Keller;A. Biermanns;G. Carbone;J. Grenzer;S. Facsko;O. Plantevin;R. Gago;T. Metzger
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T. Metzger
影响因子:
4
作者:
M. Liedke;M. Körner;K. Lenz;F. Grossmann;S. Facsko;J. Fassbender
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M. Liedke;M. Körner;K. Lenz;F. Grossmann;S. Facsko;J. Fassbender
DOI:
--
发表时间:
2013
期刊:
影响因子:
--
作者:
G. Varvaro;A. Testa;E. Agostinelli;D. Fiorani;S. Laureti;F. Springer;C. Brombacher;M. Albrecht;L. Bianco;G. Barucca;P. Mengucci;D. Rinaldi
通讯作者:
D. Rinaldi
DOI:
--
发表时间:
2008
期刊:
影响因子:
--
作者:
K. Srinivasan;S. Piramanayagam;R. Chantrell;Y. S. Kay
通讯作者:
Y. S. Kay