ch18 - Chapter 18 Magnetic Properties Concept Check 18.1...

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Chapter 18 Magnetic Properties Concept Check 18.1 Question: Cite the major similarities and differences between ferromagnetic and ferrimagnetic materials. Answer: The similarities between ferromagnetic and ferrimagnetic materials are as follows: (1) There is a coupling interaction between magnetic moments of adjacent atoms/cations for both material types. (2) Both ferromagnets and ferrimagnets form domains. (3) Hysteresis B-H behavior is displayed for both, and, thus, permanent magnetizations are possible. The differences between ferromagnetic and ferrimagnetic materials are as follows: (1) Magnetic moment coupling is parallel for ferromagnetic materials, and antiparallel for ferrimagnetic. (2) Ferromagnetics, being metallic materials, are relatively good electrical conductors; inasmuch as ferrimagnetic materials are ceramics, they are electrically insulative. (3) Saturation magnetizations are higher for ferromagnetic materials. Concept Check 18.2
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ch18 - Chapter 18 Magnetic Properties Concept Check 18.1...

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