JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS, vol. 321, no. 21, page. 3589 - 3594, 2009-11
Journal of Applied Physics, vol. 111, no. 7, page. 7C904, 2012-04-01
Thin Solid Films, vol. 519, no. 23, page. 8247 - 8251, 2011-09-30