Textured growth of Co-Fe-Ga alloy films via topotactic transformation from highly oriented precursor and spinel oxide
Textured growth of Co-Fe-Ga alloy films via topotactic transformation from highly oriented precursor and spinel oxide
复制标题
通过高取向前驱体和尖晶石氧化物的拓扑转变制备 Co-Fe-Ga 合金薄膜的织构化
DOI：
10.1016/j.matlet.2021.130306
复制
发表时间：
2021
影响因子：
3
通讯作者：
Shima Mutsuhiro
中科院分区：
文献类型：
--
作者：
Ohno Yuta;Hayashi Kensuke;Yamada Keisuke;Shima Mutsuhiro
研究了共沉淀、333 K低温热处理（LTHT）、旋涂、973 K退火30 min等工艺制备的Co-Fe-Ga（CFG）合金薄膜的织构生长。X射线衍射结果表明，LTHT制备的CFG薄膜为高度（1 1 0）取向的bcc合金，而未采用LTHT制备的CFG薄膜没有特定的取向。体心立方合金薄膜中观察到的织构形成是由拓扑转变引起的，正如前体、尖晶石氧化物和体心立方合金之间离子和原子排列的相似性所表明的那样。由Ga 3+夹杂物的前体的稳定大概起着重要的作用，在转变过程中，导致高度取向的尖晶石和CFG体心立方合金膜。
Textured growth of Co-Fe-Ga (CFG) alloy films by co-precipitation, low-temperature heat treatment (LTHT) at 333 K for 3 days, spin-coating, and post-annealing at 973 K for 30 min has been investigated. The X-ray diffraction measurements show that the CFG films made with LTHT are highly (1 1 0)-oriented bcc alloys, while those grown without LTHT are not oriented in a specific direction. The observed texture formation in the bcc alloy films results from topotactic transformation as indicated by the similarity of the ionic and atomic arrangements among the precursor, spinel oxide, and bcc alloy. The stabilization of the precursor by Ga3+inclusion presumably plays an important role in the transformation process leading to the highly orientated spinel and CFG bcc alloy films.
化学合成的 Co3−xFexO4 (0 ≤ x ≤ 2) 中磁各向异性的成分依赖性
影响因子：
1.5
作者：
Kensuke Hayashi;Keisuke Yamada;M. Shima
通讯作者：
M. Shima
影响因子：
1.8
作者：
CLARK, JB;HASTIE, JW;THACKERAY, MM
通讯作者：
THACKERAY, MM