서지주요정보
강유전체 액정(CS-1029)의 $SmC^*-SmA$ 상전이 온도 근처에서의 무른모드(soft mode)와 electroclinic effect = Soft mode behaviour & electroclinic effect at near $SmC^*-SmA$ phase transition temperature in FLC(CS-1029)
서명 / 저자 강유전체 액정(CS-1029)의 $SmC^*-SmA$ 상전이 온도 근처에서의 무른모드(soft mode)와 electroclinic effect = Soft mode behaviour & electroclinic effect at near $SmC^*-SmA$ phase transition temperature in FLC(CS-1029) / 정용환.
발행사항 [대전 : 한국과학기술원, 2002].
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등록번호

8012642

소장위치/청구기호

학술문화관(문화관) 보존서고

MPH 02002

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리뷰정보

초록정보

Electroclinic effect is theoretically well known in SmA but is not in Sm $C^*$. In the generalized Landau free energy in SmA phase and in Sm $C^*$ phase, we added helical deformation energy. As a result, we could confirm that helical twist and flexoelectric contribution influence on electroclinic tilt angle. We studied soft mode dielectric behaviour as a function of temperature, frequency and bias electric field. In Sm $C^*$ phase we performed nonlinear curve fitting to obtain linear electroclinic coefficient and spontaneous tilt angle more exactly. From the data of two separate experiments we could obtain soft mode viscosity, structural coefficient and piezoelectric coefficient and find similar behaviour between soft mode inverse dielectric strength and induced tilt angle in electrooptic experiment. Furthermore we examined soft mode relaxation and electroclinic response and found similar behaviours of nearly the same decay time.

서지기타정보

서지기타정보
청구기호 {MPH 02002
형태사항 ii, 69 p. : 삽도 ; 26 cm
언어 한국어
일반주기 저자명의 영문표기 : Yong-Hwan Jung
지도교수의 한글표기 : 김종진
지도교수의 영문표기 : Jong-Jean Kim
학위논문 학위논문(석사) - 한국과학기술원 : 물리학과,
서지주기 참고문헌 수록
주제 무른 모드
Soft mode
electroclinic effect
FLC
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