Publication:
Multiple phase transitions in perovskite structure ceramics: Structural transitions

Issued Date

1999-10-10

Resource Type

Article

ISSN

02179849

Other identifier(s)

2-s2.0-27144539287

Rights

Mahidol University

Rights Holder(s)

SCOPUS

Bibliographic Citation

Modern Physics Letters B. Vol.13, No.22-23 (1999), 791-799

Suggested Citation

C. H. Eab, B. Wiwatanapataphee, I. M. Tang Multiple phase transitions in perovskite structure ceramics: Structural transitions. Modern Physics Letters B. Vol.13, No.22-23 (1999), 791-799. Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/25482

Research Projects

Organizational Units

Authors

Journal Issue

Thesis

Title

Multiple phase transitions in perovskite structure ceramics: Structural transitions

Author(s)

C. H. Eab
 B. Wiwatanapataphee
 I. M. Tang

Other Contributor(s)

Chulalongkorn University
 Mahidol University

Abstract

A Ginzburg-Landau theory for the multiple structural phase transition observed in the cuprate perovskite structure ceramics is developed. The order parameters Ai for each phase are defined in terms of the deformations which occur in each phase. In terms of the deformation, the expansion of the free energies is to the twelfth order. The theory can account for a second-order tetragonal to orthorhombic-I transition at high temperatures and a first-order orthorhombic-I to orthorhombic-II transition at lower temperatures. The criterion for the existence of a tricritical line is established. © World Scientific Publishing Company.

Keyword(s)

Materials Science
 Mathematics
 Physics and Astronomy

Availability

URI

https://repository.li.mahidol.ac.th/handle/20.500.14594/25482

Collections

Scopus 1991-2000