IEEE Sensors Journal, vol. 16, no. 11, page. 4443 - 4451, 2016-06-01
JOURNAL OF APPLIED PHYSICS, vol. 100, no. 5, 2006-09-01
APPLIED PHYSICS LETTERS, vol. 81, no. 13, page. 2439 - 2441, 2002-09-23
PHYSICAL REVIEW B, vol. 66, no. 23, 2002-12-15