ACS Nano, vol. 10, no. 9, page. 8888 - 8894, 2016-09
PHYSICAL REVIEW LETTERS, vol. 109, no. 19, page. 197002, 2012-11-07
SCIENTIFIC REPORTS, vol. 26, no. 6, 2016-02-26
PHYSICAL REVIEW X, vol. 2, no. 1, 2012-02-28
APPLIED PHYSICS LETTERS, vol. 99, no. 7, 2011-08-15