Yb x Y 3-x Fe 5 O 12 ceramics]]>

摘要

AbstractMicrowave ferrites with low microwave loss and strong magnetoelectric (ME) or magnetodielectric (MD) effect are of great importance for real time tunable microwave devices used in modern communication systems among other applications. In this work, the crystalline structure, static magnetic characteristics, microwave electromagnetic properties and microwave magnetodielectric effect in polycrystallineYbxY3-xFe5O12(x?=?0～3)ceramics have been systematically analyzed. The maximum MD response was measured to be-3.29%～+2.9%at2–8?GHzunder an appliedDCmagnetic field,H, of 1650?Oe. The experimental results reveal that the microwave magnetodielectric behaviors of Yb-doped YIG ceramics will be influenced comprehensively by variations in crystal structure resulted from Yb substitution, which is interpreted in terms of energy conversion model. We believed the present work will prove enabling to further understand and lead to more effective applications of the ME/MD effect.Graphical abstractDisplay OmittedHighlights?Properties of Yb-YIG ferrites modulated by the crystalline structure.?Observation of magnetodielectric effect induced by ferromagnetic resonance.?The maximum MD response is measured to be??3.29%～+2.9% inx?=?0sample.?The crystalline structure dependent modulation mechanism of MD effect in Yb-YIG.]]>