Evidence of monotropic hexatic tilted smectic phase in the phase sequence of ferroelectric liquid crystal
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dc.type
JournalArticle
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dc.description.physical
159-169
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dc.abstract.en
Physical properties of a new ferroelectric liquid crystal have been studied by complementary methods: differential scanning calorimetry, polarizing optical microscopy, dielectric and X-ray diffraction. It was found that next to enantiotropic ferroelectric smectic C* phase, the monotropic smectic phase appears at cooling. X-ray diffraction measurements allowed to identify this phase as hexatic tilted smectic. Temperature dependence of spontaneous polarization, tilt angle of molecules and switching time were found in both liquid crystalline phases at cooling. Based on the dielectric results, the dielectric processes were identified as Goldstone mode in the smectic C* phase, whereas as the bond-orientation-like phason and the bulk domain mode in the monotropic hexatic tilted smectic phase.
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dc.subject.en
ferroelectric liquid crystals
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dc.subject.en
hexatic phases
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dc.subject.en
spontaneous polarization
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dc.subject.en
switching time
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dc.subject.en
tilt angle
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dc.subject.en
X-ray diffraction
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dc.description.volume
91
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dc.description.number
2
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dc.identifier.doi
10.1080/01411594.2017.1403604
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dc.identifier.eissn
1029-0338
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dc.identifier.eissn
1026-7700
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dc.title.journal
Phase Transitions
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dc.title.volume
X Conference on Neutron Scattering and Complementary Methods in Investigations of Properties of Condensed Phases
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dc.language.container
eng
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dc.affiliation
Wydział Fizyki, Astronomii i Informatyki Stosowanej : Instytut Fizyki im. Mariana Smoluchowskiego