JOURNAL OF APPLIED PHYSICS, vol. 109, no. 7, page. 7D727, 2011-04-01
IEEE TRANSACTIONS ON MAGNETICS, vol. 45, no. 6, page. 2580 - 2583, 2009-06
JOURNAL OF PHYSICS-CONDENSED MATTER, vol. 20, no. 29, 2008-07-23
PHYSICAL REVIEW B, vol. 76, no. 19, 2007-11