Selective reflection of light in glassforming ternary liquid crystalline mixtures
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arXiv
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| Main Authors: | , , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866909018804453376 |
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| author | Deptuch, Aleksandra Zając, Zuzanna Piwowarczyk, Marcin Drzewicz, Anna Kozieł, Marcin Urbańska, Magdalena Juszyńska-Gałązka, Ewa |
| author_facet | Deptuch, Aleksandra Zając, Zuzanna Piwowarczyk, Marcin Drzewicz, Anna Kozieł, Marcin Urbańska, Magdalena Juszyńska-Gałązka, Ewa |
| contents | Two ternary liquid crystalline mixtures are formulated and investigated by differential scanning calorimetry, polarizing optical microscopy, X-ray diffraction, and broadband dielectric spectroscopy. Paraelectric smectic A*, ferroelectric smectic C*, and antiferroelectric smectic C$_A$* phases are detected. The glass of the smectic C$_A$* phase is formed at moderate cooling rates. Vitrification prevents the approaching transition to a hexatic smectic phase. One mixture shows a strong thermochromic effect in the smectic C$_A$* phase and selectively reflects blue light in the glassy state. Both mixtures reflect either green or red light in the smectic C* phase, depending on temperature treatment: whether the sample is cooled or heated, or at which rate the temperature changes. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_17633 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Selective reflection of light in glassforming ternary liquid crystalline mixtures Deptuch, Aleksandra Zając, Zuzanna Piwowarczyk, Marcin Drzewicz, Anna Kozieł, Marcin Urbańska, Magdalena Juszyńska-Gałązka, Ewa Soft Condensed Matter Two ternary liquid crystalline mixtures are formulated and investigated by differential scanning calorimetry, polarizing optical microscopy, X-ray diffraction, and broadband dielectric spectroscopy. Paraelectric smectic A*, ferroelectric smectic C*, and antiferroelectric smectic C$_A$* phases are detected. The glass of the smectic C$_A$* phase is formed at moderate cooling rates. Vitrification prevents the approaching transition to a hexatic smectic phase. One mixture shows a strong thermochromic effect in the smectic C$_A$* phase and selectively reflects blue light in the glassy state. Both mixtures reflect either green or red light in the smectic C* phase, depending on temperature treatment: whether the sample is cooled or heated, or at which rate the temperature changes. |
| title | Selective reflection of light in glassforming ternary liquid crystalline mixtures |
| topic | Soft Condensed Matter |
| url | https://arxiv.org/abs/2509.17633 |