| Reference Type | Journal (article/letter/editorial) |
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| Title | Spontaneous strain in synthetic titanite, CaTiOSiO4 |
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| Journal | Mineralogical Magazine |
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| Authors | Malcherek, T. | Author |
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| Year | 2001 (December) | Volume | 65 |
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| Issue | 6 |
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| Publisher | Mineralogical Society |
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| DOI | doi:10.1180/0026461016560002Search in ResearchGate |
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| Generate Citation Formats |
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| Mindat Ref. ID | 243310 | Long-form Identifier | mindat:1:5:243310:7 |
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| GUID | 0 |
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| Full Reference | Malcherek, T. (2001) Spontaneous strain in synthetic titanite, CaTiOSiO4. Mineralogical Magazine, 65 (6) 709-715 doi:10.1180/0026461016560002 |
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| Plain Text | Malcherek, T. (2001) Spontaneous strain in synthetic titanite, CaTiOSiO4. Mineralogical Magazine, 65 (6) 709-715 doi:10.1180/0026461016560002 |
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| Abstract/Notes | AbstractLattice parameters of synthetic titanite powder, CaTiOSiO4, have been determined between room temperature and 1023 K. Only the e11 and e13 components contribute significantly to the strain tensor associated with the antiferroelectric-paraelectric phase transition at Tc = 487 K. A finite strain component e13 is observed in the paraelectric phase for 487 K < T < 825 K. The disappearance of this shear strain marks the isosymmetric transition near 825 K. The temperature evolution of the volume strain and of e11 is proportional to the squared order parameter observed in single-crystal diffraction experiments. The magnitude of the volume strain is sufficiently large to relate the observed near tricritical behaviour of the antiferroelectric-paraelectric phase transition to strain coupling. |
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