JOURNAL OF PHYSICAL CHEMISTRY C, vol. 112, no. 2, page. 629 - 634, 2008-01-17
JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, vol. 42, no. 4B, page. 2382 - 2386, 2003-04
APPLIED PHYSICS LETTERS, vol. 90, no. 24, page. 241111 - 241111, 2007-06-11
NANOSCALE, vol. 7, no. 35, page. 14774 - 14785, 2015-01