Yoo, Jae S.; Oh, Myeong S.; Park, Hea S.; Jung, Seung T.; Park, Gueorgui T.; Park, Kyung Y.
ArticleIssue Date1992CitationJAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS & EXPRESS LETTERS, v.31, no.12A, pp L1686 - L1688PublisherJAPAN SOC APPLIED PHYSICS