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Microstructure-dependent coercivity in monodispersed hematite particles
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DOI：10.1063/1.125572.png)
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摘要
En 中文
Microstructure and magnetic properties of monodispersed pseudocubic and trapezoidal particles with varying sizes prepared through the hydrothermal precipitation route are reported. The coercivity for trapezoidal particles was similar to that of reported values. For pseudocubic particles, however, the coercivity is unusually high (similar to 6 kOe) as compared to the maximum value (3 kOe) reported in the literature. Detailed microstructural analysis revealed that particles with a well-defined shape are, in fact, polycrystalline. The high coercivity and its variation with particle shape and size are correlated to the internal nanostructure of the particles. (C) 1999 American Institute of Physics. [S0003-6951(99)02552-8].
Keyword:
MANGANESE ZINC FERRITES
ALPHA-FE2O3 PARTICLES
COLLOIDAL PARTICLES
MAGNETIC-PROPERTIES
MECHANISM
GEL
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期刊
IF:
3.6
论文数:
10.4W
被引数:
17.8W
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引用论文
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PHYSICAL REVIEW BIF3.7
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