四方铁电体PbFe0.5Nb0.5O3精细结构的第一性原理研究
摘要
InordertoobtainthefinestructureoftetragonalferroelectricPbFe0.5Nb0.5O3 ,wecalculateditstotalenergybyfull potentiallinearizedaugmentedplanewavemethod .TheequilibriumconfigurationofB sitecations(FeandNb)wasdetermined .ThedisplacementofFeionsalong [0 0 1 ]directioninthefinestructureis0 .0 2 2nmandthatofNbionsis0 .0020nm .Theferroelec tricinstabilityresultsmainlyfromthedisplacementofFeions.
引用本文(GB/T 7714)
Yuanxu Wang, Weilie Zhong, Wang Chun-Lei, 等. 四方铁电体PbFe0.5Nb0.5O3精细结构的第一性原理研究[J]. Acta Physica Sinica, 2002.
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