Precursor dynamics to the structural instability in SrTiO $_{3}$
Precursor dynamics to the structural instability in SrTiO $_{3}$
The structural instability of SrTiO3 at T S = 105 K is reinvestigated experimentally and theoretically by birefringence measurements and within the self-consistent phonon approximation. Analogous to BaTiO3 the phase transition shows precursor dynamics starting approximately 60 K above the phase tran...
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Personal Name(s): | Roleder, K. (Corresponding Author) |
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Bussmann-Holder, A. / Górny, M. / Szot, K. / Glazer, A. M. | |
Contributing Institute: |
Elektronische Materialien; PGI-7 |
Published in: | Phase transitions, 85 (2012) 11, S. 939 - 948 |
Imprint: |
London [u.a.]
Taylor & Francis
2012
|
DOI: |
10.1080/01411594.2012.699051 |
Document Type: |
Journal Article |
Research Program: |
Frontiers of charge based Electronics |
Publikationsportal JuSER |
The structural instability of SrTiO3 at T S = 105 K is reinvestigated experimentally and theoretically by birefringence measurements and within the self-consistent phonon approximation. Analogous to BaTiO3 the phase transition shows precursor dynamics starting approximately 60 K above the phase transition temperature. These rotational dynamic clusters compete with precursor effects stemming from the polar soft mode and appear on different length scales as compared to BaTiO3. |