|About this Abstract
||Materials Science & Technology 2012
||Advances in Dielectric Materials and Electronic Devices
||The Ground State and the Enhancement of the Electromechanical Effect in Ferroelectric Relaxor Materials
||Nikola Novak, Rasa Pirc, Magdalena Wencka, Zdravko Kutnjak
|On-Site Speaker (Planned)
Electromechanical effect (EM) has attracted considerable attention in recent years due to its great importance for a number of applications from robotics, development of artificial muscles, ultrasonic and medical applications as well as in telecommunications. The origin of this effect is however still the subject of intensive research . The relevance of the critical point proximity for the enhancement of the giant EM response was recently shown . However, the nature of the relaxor ground state and its impact on the EM remains the long-standing unresolved enigma. Motivated by this enigma, we performed a study of the nature of the field-induced ferroelectric phase transition in relaxor single crystal Pb(Mg1/3Nb2/3)O3. The EM response was also studied along the field-induced ferroelectric phase transition line and its impact on the EM response magnitude is discussed.  M. Ahart et al., Nature 451, 545 (2008). Z. Kutnjak et al., Nature 441, 956 (2006).