Introduction to AC Susceptibility
نویسنده
چکیده
AC magnetic measurements, in which an AC field is applied to a sample and the resulting AC moment is measured, are an important tool for characterizing many materials. Because the induced sample moment is time-dependent, AC measurements yield information about magnetization dynamics which are not obtained in DC measurements, where the sample moment is constant during the measurement time. This application note will briefly describe how AC magnetic measurements are performed, discuss the meaning of the data that come out of an AC measurement, and show some measurement examples.
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Figure S3. M vs. H/T plots at 2, 4, 6 K for 1 and 2. Figure S4. Variable-frequency ac magnetic susceptibility data for 1 collected at 1.8 K, an ac field of 5 Oe and dc fields from 0 to 5 kOe. Figure S5. Cole-Cole plots of 1 at 1.8 K, an ac field of 5 Oe and dc fields from 0.25 to 5 kOe. Figure S6. Variable-temperature ac magnetic susceptibility data for 1 collected at temperatures from 2 to 12 ...
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