- Tytuł:
- Room Temperature Ferroelectric Mixture of Chiral and Achiral Thioesters
- Autorzy:
-
Czerwiec, J.
Ossowska-Chruściel, M.
Chruściel, J.
Wróbel, S. - Powiązania:
- https://bibliotekanauki.pl/articles/1538218.pdf
- Data publikacji:
- 2010-04
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
77.84.Nh
78.15.+e
64.70.M- - Opis:
- Dielectric properties of the mixture of two thioester compounds: 4-8-alkoxy-benzoate-thio-carboxyl S-4-pentyl-phenyl (8OS5), (s)-4-(1-methyl-heptyloxy)biphenyl-4-thio-carboksyl 4-9-alkil-phenyl (MHOBS9) are presented. The chiral compound exhibits nematic (N*) and ferroelectric smectic C* phase (SmC*). The achiral compound shows N, SmA and monotropic SmC and SmB phases. the mixture of both compounds of 0.5 molar fraction shows SmC* in the wider temperature range than pure MHOBS9. The mixture was studied using frequency domain dielectric spectroscopy. Dielectric measurements for the SmC* phase of the mixture revealed Goldstone mode at higher frequencies and Maxwell-Wagner relaxation at low frequencies.
- Źródło:
-
Acta Physica Polonica A; 2010, 117, 4; 549-552
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł