Kyung-Ku Choi
TDK
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Publication
Featured researches published by Kyung-Ku Choi.
AIP Advances | 2018
Takuya Sato; Ryuji Hashimoto; Yoshitomo Tanaka; Kenichi Suzuki; Yasushi Enokido; Kyung-Ku Choi; Takao Suzuki
The magnetic properties of Nd-Fe-B thin films with the three different compositions (#1: Nd12.6Fe81.5B5.9, #2: Nd14.6Fe78.1B7.4 and #3: Nd22.6Fe66.2B11.2) are discussed. With increasing Nd content, the c-axis orientation along the film normal is enhanced. It is found that sample #2 possesses the saturation magnetization Ms very close to that for Nd2Fe14B over a temperature range from 100 to about 300K. The magnetic anisotropy constant Ku2 for sample #2 is the highest among those samples, but smaller by about 20%, as compared to that for Nd2Fe14B. It is of interest to note that the temperature TR at which Ku1 changes its sign is lower by about 30K as compared to that previously reported for Nd2Fe14B. The reason for this discrepancy is not clear, but could be due to the presence of the minority phases of Nd-rich compounds and also a possible contribution of the magneto-elastic effect to the net magnetic anisotropy.
Archive | 2010
Takashi Ohtsuka; Kyung-Ku Choi; Tatsuo Namikawa; Hitoshi Yamaguchi
Archive | 2003
Kyung-Ku Choi; Taku Murase; Yohtaro Yamazaki
Archive | 2002
Yukio Sakashita; Kyung-Ku Choi
Archive | 2012
Kenichi Suzuki; Tsutomu Chikamatsu; Akio Ogawa; Kyung-Ku Choi; Ryuji Hashimoto
Archive | 2008
Toshiyasu Fujiwara; Kyung-Ku Choi
Archive | 2006
Kyung-Ku Choi
Archive | 2014
Yasushi Enokido; Kyung-Ku Choi; Ryuji Hashimoto; Daisuke Tanaka
Archive | 2007
Kyung-Ku Choi; Yohtaro Yamakazi; Taku Murase
Archive | 2006
Kyung-Ku Choi; Taku Murase
