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[摘要]：Dielectric, magnetic, and magnetodielectric properties of Y3Fe5-xTixO12+x/2 (x = 0, 0.1, 0.2) ceramics were investigated. Ti substitution induces a low temperature dielectric relaxation which comes from the charge carrier hopping between Ti3+ and Ti4+. The Maxwell-Wagner effect related dielectric relaxation becomes weak as the content of Ti increases. The extrinsic effect and intrinsic effect play a dominant role on the magnetodielectric effects for x = 0 at f < 500 kHz and f >= 500 kHz, respectively. The contribution of the extrinsic effects to magnetodielectric (MD) effect decreases and the contribution of the intrinsic effects to MD effect increases with increasing Ti amount. (C) 2012 American Institute of Physics. [doi:10.1063/1.3680090] |
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