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First‐orderA1(TO) phonons as evidence of disorder in BaTiO3

 

作者: J. L. Verble,   E. Gallego‐Lluesma,   S. P. S. Porto,  

 

期刊: Journal of Raman Spectroscopy  （WILEY Available online 1978）
卷期: Volume 7, issue 1  

页码: 7-9

 

ISSN:0377-0486

 

年代: 1978

 

DOI:10.1002/jrs.1250070106

 

出版商: John Wiley&Sons, Ltd.

 

数据来源: WILEY

 

摘要:

AbstractEvidence is presented, based on Raman scattering measurements, that the three modes observed in theA1(TO) phonon spectrum of tetragonal BaTiO3are first order. These results are interpreted as supporting the order‐disorder model of the ferroelectric phase transitio

 

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