JOURNAL OF PHYSICS-CONDENSED MATTER, vol. 28, no. 8, page. 85002, 2016-03-02
APPLIED PHYSICS LETTERS, vol. 99, no. 8, 2011-08-22
PHYSICAL REVIEW B, vol. 77, no. 11, 2008-03
SURFACE SCIENCE, vol. 602, no. 4, page. 914 - 918, 2008-02-15
PHYSICAL REVIEW B, vol. 76, no. 24, 2007-12
NEW JOURNAL OF PHYSICS, vol. 9, 2007-08-01
JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, vol. 42, no. 3B, page. L319 - L321, 2003-03-15
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, vol. 74, no. 2, page. 299 - 302, 2002-02