Giap, V.-D., Grössinger, R., Schönhart, M., & Bueno-Baqués, D. (2007). The lock-in technique for studying magnetoelectric effect. Journal of Magnetism and Magnetic Materials, 316(2), 390–393. https://doi.org/10.1016/j.jmmm.2007.03.185
E138-03 - Forschungsbereich Functional and Magnetic Materials E138-50 - Services des Instituts
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Journal:
Journal of Magnetism and Magnetic Materials
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ISSN:
0304-8853
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Date (published):
Sep-2007
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Number of Pages:
4
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Publisher:
ELSEVIER
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Peer reviewed:
Yes
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Keywords:
Condensed Matter Physics; Electronic, Optical and Magnetic Materials; Magnetoelectric effect; Multiferroic composite; Lock-in technique; Measuring technique; Dynamic method
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Abstract:
Measuring techniques for studying the magnetoelectric (ME) effect are not established yet. In this work, we report about a lock-in technique for studying the ME effect in ME-multiferroic composites. The philosophy as well as the theory of measurement is discussed. The advantages and disadvantages of this method are described. Details on our experimental set-up in which an AC field with frequencies ranging from 1 to 10 kHz and amplitudes from 1 to 20 Oe are superimposed onto a DC bias field up to 15 kOe are shown. Treatments of the zero-signal and operation modes are demonstrated. ME investigations on CoFe₂O₄-BaTiO₃ composites are discussed in details.
