Nanotubes of rare-earth manganese oxide
Nanotubes of rare-earth manganese oxide
复制标题
DOI：
10.1063/1.1635663
复制
发表时间：
2003-12
影响因子：
4
通讯作者：
P. Levy;A. Leyva;H. Troiani;R. Sánchez
中科院分区：
文献类型：
--
作者：
P. Levy;A. Leyva;H. Troiani;R. Sánchez
我们报告了稀土氧化锰基纳米管的合成。采用孔隙润湿技术获得标称成分为 La0.325Pr0.300Ca0.375MnO3 的结构，其外径为 800 nm，长度为 4000 nm，壁厚低于 100 nm，在 200 K 以下表现出磁性和磁阻行为，包括非易失性存储器。发现壁是由大约 20 nm 的小晶体形成的。使用不同直径的孔（小至 100 nm）获得的结构具有相似的纵横比。结果表明，亚锰酸盐纳米管的实现表现出固有的相分离。
We report the synthesis of rare-earth manganese-oxide-based nanotubes. The pore wetting technique was used to obtain structures of nominal composition La0.325Pr0.300Ca0.375MnO3 with 800 nm external diameter, 4000 nm length, and wall thickness below 100 nm exhibiting magnetic and magnetoresistive behavior below 200 K, including nonvolatile memory. Walls are found to be formed by small crystals of approximately 20 nm. Structures obtained using different diameter of pores, as small as 100 nm, have a similar aspect ratio. Results show the realization of nanotubes of manganites exhibiting intrinsic phase separation.