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Volumn 81, Issue 18, 2010, Pages

Strong variation of electrostrictive coupling near an intermediate temperature of relaxor ferroelectrics

(1)  Craciun, F a  

a ISC CNR   (Italy)

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EID: 77955433918     PISSN: 10980121     EISSN: 1550235X     Source Type: Journal    
DOI: 10.1103/PhysRevB.81.184111     Document Type: Article
Times cited : (12)

References (51)
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    • PNR evolution below a certain temperature which lies tens of degrees above the critical temperature Tc is also considered as the origin of the electrostrictive coupling variation of normal ferroelectrics (see Refs.). However, as it has been pointed out in Ref., an important distinction is that in relaxors the distorted regions develop around a dopant, while in ferroelectrics they arise intrinsically through optic-acoustic mode-mode coupling and they evolve to coalescence into a homogeneously polarized state at Tc
    • PNR evolution below a certain temperature which lies tens of degrees above the critical temperature T c is also considered as the origin of the electrostrictive coupling variation of normal ferroelectrics (see Refs.). However, as it has been pointed out in Ref., an important distinction is that in relaxors the distorted regions develop around a dopant, while in ferroelectrics they arise intrinsically through optic-acoustic mode-mode coupling and they evolve to coalescence into a homogeneously polarized state at T c.


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