外延生长$SrRuO_3$纳米点的磁性
Magnetic Properties of Epitaxially-grown $SrRuO_3$ Nanodots
摘要：
我们目前的制造和探索的$SrRuO_3$的纳米点阵列的点尺寸在500 nm和15 nm之间。直到所探索的最小点尺寸，发现样品是磁性的，具有通过30 nm直径的点实现的最大居里温度$T_C$。$T_C$中的该峰与外延应变的点尺寸诱导的缓解相关联，如通过扫描透射电子显微镜所证明的。
英文摘要：
We present the fabrication and exploration of arrays of nanodots of $SrRuO_3$ with dot sizes between 500 nm and 15 nm. Down to the smallest dot size explored, the samples were found to be magnetic with a maximum of the Curie temperature $T_C$ achieved by dots of 30 nm diameter. This peak in $T_C$ is associated with a dot-size-induced relief of the epitaxial strain, as evidenced by scanning transmission electron microscopy.
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