Magnetoelectric behaviour of 0–3 Co/BaTiO₃ composites

Abstract

Reduction of Co3O4/BaTiO3 in forming gas followed by sintering in flowing nitrogen with carbon as oxygen getter was applied for the syntheses of magnetoelectric 0-3 Cox/(BaTiO3)1-x composites (x = 0.1...

Exchange bias mediated self-biased magnetoelectric coupling in Co–BaTiO3 composites

“…Recently, Buttlar et al reported the ME coupling in the Co 0.5 /(BTO) 0.5 composite prepared via reduction of Co 3 O 4 /BTO in forming gas, and the maximum obtained value of α was 0.33 mV cm −1 Oe −1 . 17 In short, the α values obtained in the present investigation are way larger compared to those obtained in the latest report on Co/BTO composites.…”

“…15 In 2018, Rani et al investigated the DME coupling in Co-doped BTO and observed the highest ME coupling coefficient (a) of 3.39 mV cm À1 Oe À1 for 2.5 mol% doping of Co. 16 Recently, Buttlar et al reported the magnetoelectric coupling in the 0-3 composites of the Co-BTO system synthesized via the reduction of Co 3 O 4 and BTO under N 2 gas sintering. 17 Hence, from the above discussion, it is evident that most of the reported literature was restricted to thin films, whereas the ME coupling in Co-BTO composites has not been systematically studied so far. We believe that employing Co microstructures with meticulously designed morphology and shape anisotropy, one can significantly improve the ME coupling in Co-BTO composites.…”

“…15 In 2018, Rani et al investigated the DME coupling in Co-doped BTO and observed the highest ME coupling coefficient ( α ) of 3.39 mV cm −1 Oe −1 for 2.5 mol% doping of Co. 16 Recently, Buttlar et al reported the magnetoelectric coupling in the 0–3 composites of the Co–BTO system synthesized via the reduction of Co 3 O 4 and BTO under N 2 gas sintering. 17…”