JOURNAL OF APPLIED PHYSICS, vol. 114, no. 7, 2013-08-21
ACS NANO, vol. 7, no. 8, page. 6685 - 6690, 2013-08
APPLIED PHYSICS LETTERS, vol. 103, no. 5, page. 53109, 2013-07
APPLIED PHYSICS LETTERS, vol. 102, no. 2, 2013-01-14