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Authors Kouhei Ichiyanagi(a) and Shin-ichi Adachi、 Shunsuke Nozawa、 Yoichiro Hironaka and Kazutaka G. Nakamura、 Tokushi Sato、 Ayana Tomita、 and Shin-ya Koshihara

Journal Appl. Phys. Lett. 91、 231918 (2007)  Date 2007, December