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
复制标题

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
复制
发表时间:
2014
期刊:
影响因子:
3.5
通讯作者:
M. Albrecht
M. Albrecht
中科院分区:
材料科学3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

文献摘要

参考文献

被引文献

相似文献

我们报告的效果的微观结构和几何诱导修改的颗粒CoCrPt:SiO2薄膜的磁性与弱相互作用的磁性颗粒沉积在预结构的GaSb纳米锥模板通过离子腐蚀技术制造。通过调节照射条件,制备不同锥尺寸的纳米锥图案(直径为28至120 nm,高度为32至330 nm)。通过改变SiO2含量(8 ~ 12 at.%),研究了晶间交换耦合的影响。CoCrPt的沉积:SiO2对小纳米锥样品的影响导致了紧密的磁性颗粒堆积,这导致形成了大于GaSb锥之间平均距离的扩展磁畴。相比之下,在较大的纳米锥上,磁性涂层在侧壁上生长,相邻锥之间具有较大的间隔,导致与底层结构相关的磁性单畴区域。磁性测试表明,由于晶粒易磁化轴的角分布和晶间交换耦合强度的综合作用,剩磁和矫顽力均随锥体尺寸和/或SiO2含量的增加而减小。
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.
DOI: 10.1063/1.3293301
发表时间: 2010-02-01
影响因子: 4
作者:
Hellwig, O.;Bosworth, J. K.;Ruiz, R.
通讯作者: Ruiz, R.
离子侵蚀 GaSb 表面从平滑到粗糙的转变
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
通讯作者: T. Metzger
DOI: 10.1063/1.4729151
发表时间: 2012-06
影响因子: 4
作者:
M. Liedke;M. Körner;K. Lenz;F. Grossmann;S. Facsko;J. Fassbender
通讯作者: M. Liedke;M. Körner;K. Lenz;F. Grossmann;S. Facsko;J. Fassbender
不同厚度粒状CoCrPt:SiO2薄膜的微观结构和磁化反转机制研究
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
堆叠式CoCrPt-SiO2垂直记录介质的微观结构和切换机制
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