Linking ionic conductivity and piezoelectric resonance in KTiOPO4
Idioma
en
Article de revue
Este ítem está publicado en
Physical Review B: Condensed Matter and Materials Physics (1998-2015). 2012, vol. 85, n° 2, p. 024103
American Physical Society
Resumen en inglés
The interplay between the ionic conductivity and the ferroelectric polarization is a key point for understanding and tuning the properties of KTiOPO4 (KTP) single crystals. We show here that the piezoelectric resonance ...Leer más >
The interplay between the ionic conductivity and the ferroelectric polarization is a key point for understanding and tuning the properties of KTiOPO4 (KTP) single crystals. We show here that the piezoelectric resonance undergoes a well-defined splitting at 200 K for several KTP samples exhibiting different geometries, crystalline orientations, and ferroelectric domain states. This method is a powerful way for probing the buildup of ionic space charges when the ionic conductivity stops to screen the ferroelectric polarization. We also show that it is useful to track the evolution of this space charge under several thermal and moderate electrical stresses.< Leer menos
Palabras clave en inglés
Inorganic compounds
Piezoelectricity
Ionic conductivity
Orígen
Importado de HalCentros de investigación