Bi:SrTiO3: A quantum ferroelectric and a relaxor
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چکیده
Quantum ferroelectric and ferroelectric relaxor behavior has been found in (Sr121.5xBix)TiO3. For x <0.0267, the quantum ferroelectric relationship T«m}(x2xc) 1/2 holds with xc'0.0005, and obvious hysteresis loops were observed. The polarization relaxation shows critical slowing down. At high Bi concentration, a crossover from quantum ferroelectric to relaxor behavior occurred. The coexistence of ferroelectric and relaxor behavior in Bi:SrTiO3 was attributed to a ferroelectric domain state induced by random fields. @S0163-1829~98!02314-5# BRIEF REPORTS
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تاریخ انتشار 1998