I sincerely thanks to Professor Nobuo Kimizuka for his very kind suggestions, discussions and advices for last 3 years. I am also grateful to Professor Masahiro Goto and Professor Hiroyuki Furuta for reading, evaluating and valuable comments on the en...
I sincerely thanks to Professor Nobuo Kimizuka for his very kind suggestions, discussions and advices for last 3 years. I am also grateful to Professor Masahiro Goto and Professor Hiroyuki Furuta for reading, evaluating and valuable comments on the entire contents of this thesis to the final page. In addition, I would like to express gratitude to Associate Professor Kazunori Matsuura, Assistant Keita Kuroiwa, Secretary Reiko Ando and my all companions in Kimizuka Lab for valuable discussion and support.
I express great gratitude to Associate Professor Kenji Kaneko, Laboratory of High-Voltage Electron Microscopy at Kyushu University, for measurements of HRTEM, and also acknowledge Assistant Keita Kuroiwa and Mr. Imada, graduate student of Kajiyama Laboratory for measurements of Powder XRD.
I wish also to acknowledge the significant help from Professor Jae-Sup Shin (Chungbuk University at Korea) and lecturer Seung-Woo Lee (Kitakyushu University) for my living in Japan
Finally, I express my thankfulness to my parents, brother and sister, and especially my beloved wife (Su-Eun) and son (Joo-Ha) for their being patient and understanding throughout my courses of study.