Some magnetic properties of submicronic Fe3O4 particles
- 15 November 1988
- journal article
- research article
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 64 (10) , 5838-5839
- https://doi.org/10.1063/1.342224
Abstract
Nearly spherical Fe3O4 particles of narrow size distribution with the average diameter between 0.07 and 0.60 μm have been prepared by H2 transformation of α‐Fe2O3 particles produced from homogeneous precipitation of ferric salt solutions. The magnetic behavior of these particles has been investigated as a function of temperature between 300 and 900 K in magnetic fields up to 7 kOe. The coercive force Hc has been found to be proportional to Mr/N and Mns, where Mr is the remanent magnetization, Ms is the saturation magnetization, N is the effective self‐demagnetization constant, and n is a power index. The implication of these results is briefly discussed.This publication has 7 references indexed in Scilit:
- Morin temperature of annealed submicronicα-particlesPhysical Review B, 1987
- The hunting of the 'psark'.Journal of geomagnetism and geoelectricity, 1977
- Thermoremanent magnetization in submicroscopic magnetiteJournal of Geophysical Research, 1973
- Critical Magnetic Behavior of Nickel near the Curie PointPhysica Status Solidi (b), 1970
- The physical theory of rock magnetismAdvances in Physics, 1963
- Observations on the magnetic transition in hematite at -15°CPhilosophical Magazine, 1957
- ON THE BURTON-ON-TRENT EXPLOSION OF 1944 NOVEMBER 27Geophysical Journal International, 1947