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Volumn 405, Issue 7, 2010, Pages 1901-1907

Phenomenological analysis of phase transitions in epitaxial perovskite ferroelectric thin films

Author keywords

Epitaxial strain; Ferroelectrics; Phase transition; Phenomenology; Thin films

Indexed keywords

BIAXIAL MISFIT STRAINS; EPITAXIAL STRAIN; FERROELECTRICS; FIRST PRINCIPLE CALCULATIONS; IN-PLANE SHEAR; LANDAU-GINZBURG-DEVONSHIRE THEORY; MISFIT STRAINS; MONOCLINIC PHASIS; ORTHORHOMBIC PHASIS; PHENOMENOLOGICAL ANALYSIS; SINGLE DOMAINS; THERMODYNAMIC EQUILIBRIA;

EID: 76549120175     PISSN: 09214526     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.physb.2010.01.070     Document Type: Article
Times cited : (26)

References (22)
  • 20
    • 76549118648 scopus 로고    scopus 로고
    • It can be easily shown that the ferroelectric a phase can be stabilized in the case of isotropic strains if a12 > 2 a11 > 0. In this case, the free energy of a phase is less than that of aa phase when neglecting sixth-order and eighth-order terms if in-plane spontaneous polarization is very small. Hence, a phase can appear stably in the narrow range between p and aa phase where the in-plane polarization is very small. Similarly, ac phase can exist in the narrow range between c and r phase where the in-plane polarization is also very small
    • > 0. In this case, the free energy of a phase is less than that of aa phase when neglecting sixth-order and eighth-order terms if in-plane spontaneous polarization is very small. Hence, a phase can appear stably in the narrow range between p and aa phase where the in-plane polarization is very small. Similarly, ac phase can exist in the narrow range between c and r phase where the in-plane polarization is also very small.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.