Transmission electron microscopy characterization of nanorods in BaNb2O6-doped ErBa2Cu3O7-δ films
Transmission electron microscopy characterization of nanorods in BaNb2O6-doped ErBa2Cu3O7-δ films
复制标题
BaNb2O6 掺杂 ErBa2Cu3O7-δ 薄膜中纳米棒的透射电子显微镜表征
DOI：
10.1063/1.2894196
复制
发表时间：
2008
影响因子：
4
通讯作者：
S. Toh
中科院分区：
文献类型：
--
作者：
K. Yamada;M. Mukaida;H. Kai;R. Teranishi;A. Ichinose;R. Kita;S. Kato;S. Horii;Y. Yoshida;K. Matsumoto;S. Toh
用透射电子显微镜研究了掺杂BaNb2O6的ErBa2Cu3O7−δ薄膜中作为人工钉扎中心的微结构。从亮场图像和元素图图像证实了含有铌的纳米棒的存在。纳米棒的晶体结构被确定为立方钙钛矿。ErBa2Cu3O7−δ薄膜中纳米棒的晶格常数与Ba（Er0.5Nb0.5）O3的晶格常数非常一致。此外，在明场图像中观察到平行的莫尔条纹。利用透射电子显微镜研究了BaNb2O6掺杂ErBa2Cu3O7− δ薄膜中的人工钉扎中心结构，并对掺杂后的BaNb2O6在ErBa2Cu3O7−δ薄膜中的钉扎行为进行了研究。从亮场图像和元素图图像证实了含有铌的纳米棒的存在。纳米棒的晶体结构被确定为立方钙钛矿。ErBa2Cu3O7−δ薄膜中纳米棒的晶格常数与Ba（Er0.5Nb0.5）O3的晶格常数非常一致。此外，在明场图像中观察到平行的莫尔条纹。BaNb2O6掺杂到ErBa2Cu3O7−δ薄膜中转变为具有钙钛矿结构的Ba（Er0.5Nb0.5）O3纳米棒从未被其他研究人员证实。
BaNb2O6-doped microstructures as artificial pinning centers in ErBa2Cu3O7−δ films were studied by transmission electron microscopy. The presence of nanorods, which contain niobium, was confirmed from bright-field images and elemental map images. The crystal structure of the nanorod was determined to be cubic perovskite. The lattice constant of nanorods in the ErBa2Cu3O7−δ film was in good agreement with the lattice constant of Ba(Er0.5Nb0.5)O3. Furthermore, parallel Moire fringes were observed in the bright-field images. It has never been confirmed by any other researchers that BaNb2O6 doped into the ErBa2Cu3O7−δ film transforms to Ba(Er0.5Nb0.5)O3 nanorods with a perovskite structure.BaNb2O6-doped microstructures as artificial pinning centers in ErBa2Cu3O7−δ films were studied by transmission electron microscopy. The presence of nanorods, which contain niobium, was confirmed from bright-field images and elemental map images. The crystal structure of the nanorod was determined to be cubic perovskite. The lattice constant of nanorods in the ErBa2Cu3O7−δ film was in good agreement with the lattice constant of Ba(Er0.5Nb0.5)O3. Furthermore, parallel Moire fringes were observed in the bright-field images. It has never been confirmed by any other researchers that BaNb2O6 doped into the ErBa2Cu3O7−δ film transforms to Ba(Er0.5Nb0.5)O3 nanorods with a perovskite structure.