Title :
Magnetic analysis of high coercivity chromium dioxide particles
Author :
Muller, M.W. ; Schwab, E. ; Veitch, R.J.
Author_Institution :
BASF AG, Lugwigshafen, West Germany
fDate :
9/1/1990 12:00:00 AM
Abstract :
A modification of hydrothermal synthesis has led to a new class of iron-doped CrO2 pigments with coercivities significantly higher than the previous `limit´ of 56 kAm-1 (700 Oe). It is demonstrated that enhanced incorporation of iron is the reason for the increased coercivity. A summary of crystallographic and magnetic properties is presented
Keywords :
chromium compounds; coercive force; iron; magnetic properties of fine particles; magnetic recording; magnetic susceptibility; magnetic tapes; CrO2:Fe; coercivities; crystallographic properties; hydrothermal synthesis; magnetic properties; Anisotropic magnetoresistance; Chromium; Coercive force; Crystallization; Iron; Lattices; Magnetic analysis; Magnetic anisotropy; Magnetic materials; Perpendicular magnetic anisotropy;
Journal_Title :
Magnetics, IEEE Transactions on
