Study on single-domain growth of Y1.8Ba2.4Cu3.4Oy/Ag system by using Nd123/MgO thin film as seed
Study on single-domain growth of Y1.8Ba2.4Cu3.4Oy/Ag system by using Nd123/MgO thin film as seed
复制标题
DOI：
10.1088/0953-2048/13/6/314
复制
发表时间：
2000-06
影响因子：
3.6
通讯作者：
C. Cai;K. Tachibana;H. Fujimoto
中科院分区：
文献类型：
--
作者：
C. Cai;K. Tachibana;H. Fujimoto
用（001）Nd 123/MgO薄膜代替Nd Ba 2Cu 3 Oy（Nd 123）块体晶体作为晶种，研究了YBaCuO/Ag系统等温凝固过程中的单畴生长。使用低至1000 °C的各种最大处理温度（Tmax）来制造纹理化域。研究了形核和单畴生长对过冷度和Tmax的依赖关系。对于较低的Tmax处理的样品，非稳态生长发生后的时间间隔，这是由于随机成核。
Instead of NdBa2Cu3Oy (Nd123) bulk crystal, a (001) Nd123/MgO thin film is used as the seed to study single-domain growth in the isothermal solidification of the YBaCuO/Ag system. Various maximum processing temperatures (Tmax), down to 1000 °C, are used to fabricate the textured domain. The dependences of nucleation and single-domain growth on undercooling and Tmax are studied, respectively. For the lower Tmax processed sample, non-steady growth takes place after a time interval, which is attributed to random nucleation.