Park, Gui Youn; Seo, Ji-hyun; Kim, Young Kwan; Kim, Young Sik; Ha, Yunkyoung
ArticleIssue Date2007CitationJAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, v.46, no.4B, pp.2735 - 2739PublisherJAPAN SOC APPLIED PHYSICS