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zhudan0921金蟲 (小有名氣)
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[求助]
關(guān)于磁性問題的請教,急。。 已有2人參與
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小弟對磁性不是很懂,不太明白審稿人的意思,不知該如何回答,還請懂這方面的牛人幫幫忙。下面是審稿人的意見: 5) Magnetic measurements: in line 216 it is written “remanence and coercivity are zero”. Is it Mr=0 emu/g and Hc=0Oe or this values are close to zero like Mr a few emu/g and Hc= over a dozen Oe, what is common for nanosized soft magnetic spinel ferrites? This needs clarification |
金蟲 (小有名氣)
木蟲 (著名寫手)
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For soft magnetic spinel ferrites, the remanence and coercivity are strongly dependent on the particle size. For a multi domain sample, the coercivity may changes from several tens Oe to hundred Oe, and the remanence is dependent on the sample weight (it should not be zero any way). If your sample is in single domain state, then it is superparamagnetic and the coercivity and remanence should be zero. You can distinguish superparamagnetic from ferri/ferromagnetic state by the particle size, or by carry out ZFC-FC measurement. |
金蟲 (著名寫手)
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