Magnetic analysis of high coercivity chromium dioxide particles

A modification of hydrothermal synthesis has led to a new class of iron-doped CrO/sub 2/ pigments with coercivities significantly higher than the previous 'limit' of 56 kAm/sup -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.<
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