Journal of The Electrochemical Society, vol. 159, no. 5, page. 146 - 151, 2012-03
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, vol. 40, no. 4B, page. 2712 - 2716, 2001-04
APPLIED PHYSICS LETTERS, vol. 77, no. 10, page. 1443 - 1445, 2000-09-04