Magnetocapacitance without magnetoelectric coupling

Applied Physics Letters - Tập 88 Số 10 - 2006
Gustau Catalán1,2
1University of Cambridge Department of Earth Sciences, , Cambridge CB2 3EQ, United Kingdom and Materials Science Center, , Groningen 9747AG, Netherlands
2University of Groningen Department of Earth Sciences, , Cambridge CB2 3EQ, United Kingdom and Materials Science Center, , Groningen 9747AG, Netherlands

Tóm tắt

The existence of a magnetodielectric (magnetocapacitance) effect is often used as a test for multiferroic behavior in new material systems. However, strong magnetodielectric effects can also be achieved through a combination of magnetoresistance and the Maxwell-Wagner effect, unrelated to true magnetoelectric coupling. The fact that this resistive magnetocapacitance does not require multiferroic materials may be advantageous for practical applications. Conversely, however, it also implies that magnetocapacitance per se is not sufficient to establish that a material is multiferroic.

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Applied Physics Letters

Tập 88 Số 10

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