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Zeitschriftenartikel:

V. Giap, R. Grössinger, M. Schönhart, D. Bueno-Baqués:
"The lock-in technique for studying magnetoelectric effect";
Journal of Magnetism and Magnetic Materials, 316 (2007), S. 390 - 393.



Kurzfassung englisch:
The lock-in technique for studying magnetoelectric effect

Giap V. Duong a, b, R. Groessinger a, M. Schoenhart a and D. Bueno-Basques c

a Institute for Solid State Physics, Vienna University of Technology, Wiedner Hauptstrasse 8-10, 1040 Vienna, Austria
b Faculty of Chemical Engineering, Hanoi University of Technology, Dai Co Viet, Hai Ba Trung, Hanoi, Vietnam
c CIMAV, Miguel de Cervantes, 120°, 31109 Chihuahua, Mexico

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.

Schlagworte:
Magnetoelectric effect; Lock-in technique; Measuring technique; Dynamic method; Multiferroic composite


"Offizielle" elektronische Version der Publikation (entsprechend ihrem Digital Object Identifier - DOI)
http://dx.doi.org/10.1016/j.jmmm.2007.03.185

Elektronische Version der Publikation:
http://dx.doi.org/10.1016/j.jmmm.2007.03.185


Erstellt aus der Publikationsdatenbank der Technischen Universität Wien.