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Andika Fajar
Technology Center for Nuclear Industrial Materials (PTBIN) - BATAN Kawasan Puspiptek, Serpong 15314, Tangerang
Materials Science & Nanotechnology

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DIELECTRIC PROPERTIESOF SMECTIC-Cα* PHASE Andika Fajar; Hiroshi Orihara
Jurnal Sains Materi Indonesia Vol 7, No 3: JUNI 2006
Publisher : Center for Science & Technology of Advanced Materials - National Nuclear Energy Agency

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (473.465 KB) | DOI: 10.17146/jsmi.2006.7.3.4837

Abstract

DIELECTRIC PROPERTIESOF SMECTIC-Cα* PHASE. Linear and third-order nonlinear dielectric measurements have been performed within the smectic-Cα* phase of antiferroelectric liquid crystal 4-(1-methyl-heptyloxycarbonyl) phenyl 4-octylcarbonyloxybiphenyl-4-carboxylate (MHPOCBC). In the low temperature region of smectic-Cα* phase, we observed the hysteresis of dielectric constant in cooling and heating process measurement. From the frequency dispersion measurement, it has been found that the frequency relaxation of antiferroelectric Goldstone mode and ‘low frequency mode’, decreased with increasing the temperature until approach the center of the smectic-Cα* phase.
Co-Authors Hiroshi Orihara