Japanese Journal of Applied Physics, vol. 52, no. 4, page. 4CC21-1 - 4CC21-4, 2013-04
IEEE ELECTRON DEVICE LETTERS, vol. 31, no. 9, page. 915 - 917, 2010-09
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, vol. 40, no. 3B, page. 2054 - 2057, 2001-03