Experimental set up of a magnetoelectric measuring system operating at different temperatures

摘要

Themagnetoelectriceffectisthephenomenonwherebythroughamagneticstimulationcanbeproducedanelectricalresponseorviceversa.Weimplementamagnetoelectricvoltagemeasuringdevicethroughthedynamicmethodforadifferentrangeoftemperatures.Thesystemwassplitintoanelectricsetandaninstrumentationandcontrolset.Designandelementselectioncriteriathattheexperimentermusttakeintoaccountarepresented,withspecialemphasisinthedesignofthesampleholder,whichisthefundamentalcomponentthatdifferentiatesthesystemoperatingathightemperatureandtheoneoperatingatroomtemperature.TheexperimentalequipmentconsistsofanelectromagnetwithDCmagneticfluxdensity(B)inarangeof(0.0to1.6)KOe,aHelmholtzcoilwhichoperateswithasinusoidalBbetween(0.0and0.016)KOeandaPT100temperaturesensor.Atubularheatingresistance,aCheckmantemperaturecontrolandanSSR40Awereusedforcontrollingthetemperature.Asanapplicationofthesystem,thetransverseandlongitudinalmagnetoelectriccoefficientwasmeasuredforathinfilmofBiFeO3atroomtemperatureand307K.Itwasobservedthatthebehaviourofthelongitudinalandtransversemagnetoelectriccoefficientmatchesthereportedvalueanddecreasedwithincreasingtemperature...