Ferroelectric relaxor behavior and dielectric spectroscopic study of 0.99(Bi0.5Na0.5TiO3)–0.01(SrNb2O6) solid solution

Singh, Karan; Bajpai, P. K.

doi:10.1016/j.jallcom.2010.12.195

Cited by 9 publications

(2 citation statements)

References 37 publications

(31 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…2 respectively. The dielectric constant goes through a broad maximum, which indicates a diffuse phase transition [20,35,36]. The peak temperature (T m ) at which maximum dielectric constant occurs is found to be frequency-dependent and shifts to higher temperatures with increasing frequency.…”

Section: Dielectric Propertiesmentioning

confidence: 92%

Room temperature relaxor ferroelectricity and spin glass behavior in Sr2FeTiO6 double perovskite

Lekshmi

Pillai

Суреш

et al. 2012

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Section: Dielectric Propertiesmentioning

confidence: 92%

Room temperature relaxor ferroelectricity and spin glass behavior in Sr2FeTiO6 double perovskite

Lekshmi

Pillai

Суреш

et al. 2012

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…Further, the relaxor behaviour observed in lead free materials is significantly different than that observed in lead based relaxors [27,28]. Even in recently reported new lead based relaxors [29,30,31], the values of parameters characterizing relaxor phase are quite different than those observed in prototype relaxors such as PMN, PZN and PLZT. Therefore the problem needs to be reviewed and new results reported in last couple of years need to be critically analysed in the light of known theoretical framework to understand these disordered systems [32].…”

Section: Introductionmentioning

confidence: 97%

Dielectric Relaxation Phenomena in some Lead and Non-Lead Based Ferroelectric Relaxor Materials: Recent Advances

Bajpai

2012

SSP

View full text Add to dashboard Cite

Relaxors with general formula AA'BB'O3with different cationic distributions at A/B-sites have important device applications in capacitors, piezoelectric ultrasonic transducers, electrostrictive actuators, SAW substrates, etc. The doping or compositional changes in these ceramics can control the high electromechanical characteristics. Lead zirconate titanates (PZT) - based solid solutions exhibit excellent electrochemical properties and are widely used as actuators, transducers, ceramic filters, resonators, sensors and other electronic devices, due to their excellent piezoelectric properties. Although, there has been a concerted effort to develop leadfree piezoelectric ceramics, no effective alternative to PZT has yet been found; most other materials that possess high dielectric and piezoelectric coefficients still contain lead ions. Dielectric relaxation in these materials is of fundamental importance. Recently, new relaxor ferroelectric materials (Pb (B1/3Nb2/3)O3types) have been reported by our group in which the dielectric relaxation character is different from that observed in typical lead based relaxors. In the first part of the review, relaxor characteristics, strategies to synthesize phase pure lead based relaxors and dielectric relaxation phenomena are presented. Deviation of the frequency dependent susceptibility from Curie-Weiss law is analysed both in terms of Gaussian and Lorentzian formalisms. Lead based ferroelectric relaxor materials, due to environmental, health and social reasons are not preferred in devices and attempts are being made to eliminate the lead content from these materials. Sodium bismuth titanate (Na0.5Bi0.5TiO3, abbreviated as NBT), is considered to be one of the excellent candidates for lead-free piezoelectric material. However, pure NBT piezoelectric ceramics are difficult to pole due to its relatively large coercive field and high electrical conductivity. Therefore, many solid solutions of NBT with other ceramics are proposed to improve the relevant properties. In the second part of the review, relaxor behaviour of newly developed solid solutions of NBT is discussed. Finally, the future scope of research on these advance materials is presented.

show abstract

Dielectric behavior of hexagonal and orthorhombic YFeO3 prepared by modified sol-gel method

et al. 2013

View full text Add to dashboard Cite

Ferroelectric relaxor behavior and dielectric spectroscopic study of 0.99(Bi0.5Na0.5TiO3)–0.01(SrNb2O6) solid solution

Cited by 9 publications

References 37 publications

Room temperature relaxor ferroelectricity and spin glass behavior in Sr2FeTiO6 double perovskite

Room temperature relaxor ferroelectricity and spin glass behavior in Sr2FeTiO6 double perovskite

Dielectric Relaxation Phenomena in some Lead and Non-Lead Based Ferroelectric Relaxor Materials: Recent Advances

Dielectric behavior of hexagonal and orthorhombic YFeO3 prepared by modified sol-gel method

Contact Info

Product

Resources

About