Size-Dependent Nonuniversal Conductivity in Nanometer-Size Co Cluster Assemblies.
Size-Dependent Nonuniversal Conductivity in Nanometer-Size Co Cluster Assemblies.
复制标题
纳米尺寸钴簇组件中尺寸依赖性的非通用电导率。
DOI：
10.1143/jpsj.68.28
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发表时间：
1999
影响因子：
1.7
通讯作者：
Kenji Suzuki
中科院分区：
文献类型：
--
作者：
S. Yamamuro;K. Sumiyama;T. Hihara;Kenji Suzuki
利用逾渗理论研究了纳米Co团簇在基底上的二维组装过程。我们证明了非普遍的行为的电导率强烈依赖于集群的大小，d：电导率临界指数从1.1增加到1.8，增加d从6到13 nm。软渗流模型，它考虑到了广泛分布的集群之间的连接，是一个候选人来解释这种非普适性。
We studied the two-dimensional assembling process of nanometer-size Co clusters on substrates in terms of the percolation theory. We demonstrate the nonuniversal behavior of the electrical conductivity depending strongly on the cluster size, d : the conductivity critical exponent increases from 1.1 to 1.8 with increasing d from 6 to 13 nm. The soft-percolation model, which takes into account the wide distribution of connectivity between clusters, is a candidate to explain this nonuniversality.