Kim, KR[Kim, Kwang-Ryul]; Yi, J[Yi, Junsin]; Cho, SH[Cho, Sung-Hak]; Kang, NH[Kang, Nam-Hyun]; Cho, MW[Cho, Myung-Woo]; Shin, BS[Shin, Bo-Sung]; Choi, B[Choi, Byoungdeog]
ArticleIssue Date2009CitationAPPLIED SURFACE SCIENCE, v.255, no.18, pp.7835 - 7840PublisherELSEVIER SCIENCE BV