NEW JOURNAL OF PHYSICS, vol. 10, 2008-05-23
IEEE TRANSACTIONS ON MAGNETICS, vol. 43, no. 6, page. 3046 - 3048, 2007-06
PHYSICA STATUS SOLIDI B-BASIC RESEARCH, vol. 241, no. 7, page. 1577 - 1580, 2004-06
PHYSICAL REVIEW B, vol. 66, no. 11, 2002-09-15