by O, Ryong-Sok, Takamura, Makoto, Furukawa, Kazuaki, Nagase, Masao, Hibino, Hiroki
Published in Japanese Journal of Applied Physics (01.03.2015)

by O, Ryong-Sok, Iwamoto, Atsushi, Nishi, Yuki, Funase, Yuya, Yuasa, Takahiro, Tomita, Takuro, Nagase, Masao, Hibino, Hiroki, Yamaguchi, Hiroshi
Published in Japanese Journal of Applied Physics (01.06.2012)

by Kobayashi, Keisuke, Tanabe, Shinichi, Tao, Takuto, Okumura, Toshio, Nakashima, Takeshi, Aritsuki, Takuya, O, Ryong-Sok, Nagase, Masao
Published in Applied physics express (01.03.2015)

by O, Ryong-Sok, Iwamoto, Atsushi, Nishi, Yuki, Funase, Yuya, Yuasa, Takahiro, Tomita, Takuro, Nagase, Masao, Hibino, Hiroki, Yamaguchi, Hiroshi
Published in Japanese Journal of Applied Physics (20.06.2012)