Division of Materials Science and Engineering;
Graduate School of Engineering;
Hokkaido University;
Kita-13;
Nishi-8;
Kita-ku;
Sapporo 060-8628;
Japan;
Division of Materials Science and Engineering;
Graduate School of Engineering;
Hokkaido University;
Kita-13;
Nishi-8;
Kita-ku;
Sapporo 060-8628;
Japan;