Characterization of ferroelectric properties of Bi4-xPr xTi3O12 polycrystals

Abstract

Several studies of local seismicity were carried out between 1996 and 1998 on the coast and north of the Jalisco Block (JB) using a portable seismic network consisting of five Lennartz M88 seismographs with Le 3D (1 Hz) seismometers. The data from these studies, complemented with data from RESCO (Colima Seismic Network), is used to characterize three seismogenic zones in the region. One seismicity zone, located east of the Middle America Trench (MAT), under the continental plate, is associated with the interaction of the Rivera and North America plates, and can be characterized as a Double Seismic Zone (DSZ) with geometry suggesting a bending plate and, probably, oblique subduction; this pattern is clearer south of the 20 N parallel. A second zone of continental intraplate seismicity is located between Ameca and Amatlan de Cañas, in the northeastern part of the study region, where the source depths vary from very shallow to about 35 km. The third zone is Bahía de Banderas where the stress pattern seems to be very complex; here we observe different types of seismic events: the first type consists of shallow events, located in the southern part of the Bay and a under continental area, that seems to be associated with the interplate (Rivera/North America) activity. A second event type with depths between 10 and 30 km, seems to be related to features that cross the Bay in an EW direction. In this zone, there is also a high shallow continental seismicity, which agrees with continental topographic features. " 2002 Elsevier Science B.V. All rights reserved.",,,,,,"10.1016/S0031-9201(02)00049-3",,,"http://hdl.handle.net/20.500.12104/39982","http://www.scopus.com/inward/record.url?eid=2-s2.0-0037201292&partnerID=40&md5=02870c5f116894a43389c5f7a4ead05f",,,,,,"01-mar",,"Physics of the Earth and Planetary Interiors",,"141

155",,"132",,"Scopus

WOS",,,,,,"Double seismic zone; Intraslab earthquakes; Jalisco block; Megathrust earthquakes; Rivera plate; Subduction",,,,,,"Characteristics of seismicity in the coast and north of Jalisco Block, Mexico",,"Article" "41774","123456789/35008",,"Munro, A., Postgrado en Física de Materiales, CICESE-CCMC, Centro de Investigación Científica y Estudios Superiores de Ensenada, Apdo. Postal 2732, Ensenada, Baja California, 22860, Mexico; Mata, J., Centro de Ciencias de la Materia Condensada, Universidad Nacional Autónoma de México, Apdo. Postal 2681, Ensenada, Baja California, 22800, Mexico; Martínez, E., Centro de Ciencias de la Materia Condensada, Universidad Nacional Autónoma de México, Apdo. Postal 2681, Ensenada, Baja California, 22800, Mexico, Centro de Investigación en Materiales, DIP-CUCEI, Universidad de Guadalajara, Apartado Postal 2-638, Guadalajara, Jalisco, 44281, Mexico; Siqueiros, J., Centro de Ciencias de la Materia Condensada, Universidad Nacional Autónoma de México, Apdo. Postal 2681, Ensenada, Baja California, 22800, Mexico",,"Munro, A.

Mata, J.

Martinez, E.

Siqueiros, J.",,"2006",,"Effects of Praseodymium doping on the ferroelectric properties of Bi 4Ti3O12 using dense ceramics was systematically investigated from room temperature to 730 °C DRX and XPS studies shows that structure can accept only 10% of praseodymium without the precipitation of second phases. Thermoelectric analysis and ferroelectric hysteresis measurements were performed and show that the incorporation of praseodymium modified the transition temperature Tc and slightly the polarization values. The incorporation of praseodymium resulted in a variation in the permittivity and in the remnant polarization (2Pr). The polarization characteristics in the samples doping were different to Bi4Ti3O12. " 2007 Materials Research Society.