First-principles study of the structural instabilities in hexagonal barium titanate:coupling between the soft optical and the acoustic modes

Ferroelectrics

Volumn 237, Issue 1-4, 2000, Pages 25-32

  Íñtiguez, Jorge ^a   García, Alberto ^a   Perez Mato J M ^a  

^a UNIVERSITY OF THE BASQUE COUNTRY UPV EHU   (Spain)

Author keywords

First principles; Hexagonal barium titanate; Structural phase transitions

Indexed keywords

CRYSTAL STRUCTURE; ELECTROMAGNETIC FIELD EFFECTS; FERROELECTRIC MATERIALS; PHASE TRANSITIONS; STABILITY; STRAIN;

FIRST PRINCIPLES; HEXAGONAL BARIUM TITANATE; IMPROPER FERROELASTIC CHARACTER; SECONDARY ORDER PARAMETER; SOFT OPTICAL MODE; STRUCTURAL PHASE TRANSITIONS;

BARIUM TITANATE;

EID: 0342573197     PISSN: 00150193     EISSN: None     Source Type: Journal    
DOI: 10.1080/00150190008216228     Document Type: Article

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