Ferroparaelectric transitions in relaxor materials studied by a photoacoustic technique

Flores, J. Luis Pineda; Castan˜eda-Guzma´n, R.; Villagran-Muniz, M.; Huanosta-Tera, Alfonso
August 2001
Applied Physics Letters;8/20/2001, Vol. 79 Issue 8, p1166
Academic Journal
Photoacoustic experiments were carried out in two ceramic compounds to present a promising way to study relaxor materials. This technique has been shown to have some advantages in the investigation of phase transitions in a variety of materials. We use the temperature-dependent data of both dielectric and photoacoustic responses from the ceramic compound Bi[sub 4-x]R[sub x]Ti[sub 3]O[sub 12], with R[sub x]=Pr, x=0 and 1.6, to illustrate this work. We establish definitely that Bi[sub 4]Ti[sub 3]O[sub 12] is a relaxor. © 2001 American Institute of Physics.


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