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Titolo:
NONLINEAR DIELECTRIC-SPECTROSCOPY OF THE GOLDSTONE MODE IN AN ANTIFERROELECTRIC LIQUID-CRYSTAL
Autore:
OBAYASHI K; ORIHARA H; ISHIBASHI Y;
Indirizzi:
NAGOYA UNIV,SCH ENGN,DEPT APPL PHYS NAGOYA AICHI 46401 JAPAN
Titolo Testata:
Journal of the Physical Society of Japan
fascicolo: 9, volume: 64, anno: 1995,
pagine: 3188 - 3191
SICI:
0031-9015(1995)64:9<3188:NDOTGM>2.0.ZU;2-C
Fonte:
ISI
Lingua:
ENG
Keywords:
NONLINEAR DIELECTRIC CONSTANTS; GOLDSTONE MODE; ANTIFERROELECTRIC LIQUID CRYSTAL; MHPOBC; SURFACE ANCHORING;
Tipo documento:
Letter
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
10
Recensione:
Indirizzi per estratti:
Citazione:
K. Obayashi et al., "NONLINEAR DIELECTRIC-SPECTROSCOPY OF THE GOLDSTONE MODE IN AN ANTIFERROELECTRIC LIQUID-CRYSTAL", Journal of the Physical Society of Japan, 64(9), 1995, pp. 3188-3191

Abstract

The third-order nonlinear dielectric constant of an antiferroelectricliquid crystal, MHPOBC, was measured in the antiferroelectric phase (SmCA). The third-order dielectric relaxation due to the antiferroelectric Goldstone mode was observed, which was Debye-type. This Debye-type relaxation in the third-order dielectric response indicates that thethird-order dielectric constant should be proportional to the linear susceptibility of the antiferroelectric Goldstone mode. The temperature dependence of the relaxation frequency was obtained from the third-order dielectric constant. By comparing it with that obtained by the photon correlation spectroscopy, it was found that the surface anchoringhas a great influence on the helical pitch.

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Documento generato il 10/07/20 alle ore 02:42:04