Abstract
An atomic-scale picture of the strain-mediated magnetoelectric (ME) coupling is delineated by carefully examining the effect of an applied electric field on the extended X-ray absorption fine structure (EXAFS) spectra of a CoFe 2O 4-dispersed Pb(Zr,Ti)O 3 matrix (CFO–PZT) composite. These studies demonstrated a tensile-compressive strain relation between the PZT matrix and the dispersed CFO phase, thereby providing an X-ray spectroscopic evidence of the interfacial strain-mediated ME coupling. Both the dielectric anomaly observed at ∼480 °C and the decrease in the remanent magnetization under an applied electric field support the strain-mediated ME coupling in the CFO–PZT composite.
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