PHYSICAL REVIEW LETTERS, vol. 117, no. 11, page. 116102, 2016-09-08
PHYSICAL REVIEW B, vol. 92, no. 4, 2015-07-22
PHYSICAL REVIEW LETTERS, vol. 109, no. 16, page. 166102, 2012-10-17
SURFACE SCIENCE, vol. 605, no. 5, page. 551 - 554, 2011-03
PHYSICAL REVIEW LETTERS, vol. 104, no. 24, 2010-06-16