Order parameters of the phase transition in bismuth titanate | Zendy

Holakovský J. | Zendy

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Order parameters of the phase transition in bismuth titanate

Author(s) -

Holakovský J.

Publication year - 1975

Publication title -

physica status solidi (b)

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.51

H-Index - 109

eISSN - 1521-3951

pISSN - 0370-1972

DOI - 10.1002/pssb.2220690231

Subject(s) - bismuth titanate , bismuth , phase transition , representation (politics) , symmetry (geometry) , order (exchange) , irreducible representation , condensed matter physics , phase (matter) , titanate , materials science , mathematics , physics , mathematical physics , pure mathematics , quantum mechanics , ferroelectricity , geometry , ceramic , law , political science , composite material , finance , politics , economics , dielectric , metallurgy

It is shown that the phase transition in bismuth titanate (at 675 °C) cannot be caused by the onset of parameters belonging to an irreducible representation. The parameters of the transition are divided into two sets; one leading to the symmetry B2cb, the other being responsible for the onset of the polarisation P c . The former set of parameters is found and is shown to belong to a reducible representation.

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