Preparing magnetic yttrium iron garnet nanodot arrays by ultrathin anodic alumina template on silicon substrate
Preparing magnetic yttrium iron garnet nanodot arrays by ultrathin anodic alumina template on silicon substrate
复制标题
硅基底上超薄阳极氧化铝模板制备磁性钇铁石榴石纳米点阵列
DOI：
10.1063/1.4928543
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发表时间：
2015-08
影响因子：
4
通讯作者：
Qin, Huibin
中科院分区：
文献类型：
--
作者：
Zheng, Peng;Wu, Qiong;Deng, Longjiang;Qin, Huibin
通过超薄氧化铝掩膜（UTAM），采用脉冲激光沉积法制备了超高密度周期性有序磁性钇铁石榴石（Y3Fe5O12， YIG）纳米点阵列。在硅衬底上制备了具有直径为350 nm、孔间距离为450 nm、孔高为700 nm的周期性有序圆形孔的UTAM。此外，还对yigg纳米点阵列的微观结构和磁性能进行了表征。制备了直径以340 nm为中心、标准偏差为10 nm的纳米点阵列。此外，典型的磁滞回线和面内外的铁磁共振谱揭示了这种独特的结构对YIG的磁性能有很大的影响。首先，平面内的YIG纳米点阵列的矫顽力从YIG薄膜的15 Oe提高到500 Oe。然后，纳米点高度的均匀度决定了在光谱中检测到两个或多个面外共振峰。平行方向和垂直方向的峰间线宽分别约为94 Oe和40 Oe，表明双磁振子散射的值更大。因此，这种图案化方法为氧化物纳米磁体的物理研究创造了机会，并可能应用于自旋波器件。
Ultrahigh density periodically ordered magnetic yttrium iron garnet (Y3Fe5O12, YIG) nanodot arrays have been prepared by pulsed laser deposition through an ultrathin alumina mask (UTAM). UTAM having periodically ordered circularly shaped holes with 350 nm in diameter, 450 nm in inter-pore distance, and 700 nm in height has been prepared on silicon substrate. Furthermore, the microstructure and magnetic properties of YIG nanodot arrays have been characterized. Nanodot arrays with a sharp distribution in diameter centered at 340 nm with standard deviation of 10 nm have been fabricated. Moreover, typical hysteresis loops and ferromagnetic resonance spectra in in-plane and out-of-plane revealed that this unique structure greatly influences the magnetics properties of YIG. First, coercivity of YIG nanodot arrays in in-plane was increased about from 15 Oe of YIG films to 500 Oe. Then, the degree of uniformity about nanodot height decided that two or more resonance peaks in out-of-plane were detected in the spectra. The peak-to-peak linewidth values were about 94 Oe and 40 Oe in the parallel and perpendicular directions, respectively, which indicated that the values were larger by the two-magnon scattering. Consequently, this pattering method creates opportunities for studying physics in oxide nanomagnets and may be applied in spin-wave devices.
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影响因子：
--
作者：
M. Ezawa
通讯作者：
M. Ezawa
影响因子：
1.8
作者：
Jia Du;Jia Wang;Ting Zhang;D. Bai;Y. Guo;Yusheng He
通讯作者：
Jia Du;Jia Wang;Ting Zhang;D. Bai;Y. Guo;Yusheng He
硅基低铁磁共振线宽钇铁石榴石薄膜的制备
影响因子：
6.7
作者：
P. Zheng;J. X. Deng;L. Zheng;M. G. Han
通讯作者：
M. G. Han
影响因子：
10.8
作者：
O. Ersen;S. Bégin;M. Houllé;J. Amadou;I. Janowska;J. Greneche;C. Crucifix;C. Pham‐Huu
通讯作者：
O. Ersen;S. Bégin;M. Houllé;J. Amadou;I. Janowska;J. Greneche;C. Crucifix;C. Pham‐Huu
影响因子：
3.2
作者：
P. Seiden;J. Grunberg
通讯作者：
P. Seiden;J. Grunberg