Sm A - ferroelectric-Sm C transition in the mixture of C7+10.O.4 and in the ferroelectric C7

被引：0

作者：

Aksoy, S. ^{[1
]}

Kurt, M. ^{[1
]}

Yurtseven, H. ^{[2
]}

机构：

[1] Canakkale 18 Mart Univ, Dept Phys, Canakkale, Turkey

[2] Middle East Tech Univ, Dept Phys, Ankara, Turkey

来源：

FERROELECTRICS | 2020年 / 554卷 / 01期

关键词：

Tilt angle; dielectric constant; Sm A - Sm C* transition; C7+10.O.4; C7; AC PHASE-CHANGE; LIQUID-CRYSTALS; ELECTRIC-FIELD; MEAN-FIELD; SUSCEPTIBILITY; BEHAVIOR; MODEL;

D O I：

10.1080/00150193.2019.1684762

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Tilt angle and the dielectric constant (susceptibility ) as functions of the field strength and temperature, respectively are calculated from the Landau phenomenological model and they are fitted to the observed data from the literature for the Sm A - Sm C* transition in the mixture of C7 + 10.O.4. Values of the critical exponents for the order parameters (tilt angle and polarization P) and tilt angle susceptibility of C7 and of the (dielectric constant) of the mixture C7 + 10.O.4 close to are extracted from the power-law formula. Our results indicate a second-order and a weakly first-order Sm A - Sm C* transitions for C7 + 10.O.4 and C7, respectively as also observed experimentally.

引用

页码：21 / 29

页数：9

共 50 条

[11] Influence of Quadrupolar Ordering Factor on Supermolecular Structure in Ferroelectric Sm C
Raszewski, Z.
Kedzierski, J.
Perkowski, P.
Rutkowska, J.
Piecek, W.
Zielinski, J.
Zmija, J.
Dabrowski, R.
Molecular Crystals and Liquid Crystals Science and Technology Section A: Molecular Crystals and Liquid Crystals, 328 : 255 - 263
[12] Influence of quadrupolar ordering factor on supermolecular structure in ferroelectric Sm C
Raszewski, Z
Kedzierski, J
Perkowski, P
Rutkowska, J
Piecek, W
Zielinski, J
Zmija, J
Dabrowski, R
MOLECULAR CRYSTALS AND LIQUID CRYSTALS SCIENCE AND TECHNOLOGY SECTION A-MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1999, 328 : 255 - 263
[13] Memory effect near transition temperature in Sm C* phase in nonsurface stabilized ferroelectric liquid crystals
Coondoo, I.
Malik, A.
Choudhary, A.
Kumar, A.
Biradar, A. M.
JOURNAL OF APPLIED PHYSICS, 2008, 104 (08)
[14] Memory effect near transition temperature in Sm C phase in nonsurface stabilized ferroelectric liquid crystals
Coondoo, I.
Malik, A.
Choudhary, A.
Kumar, A.
Biradar, A.M.
Journal of Applied Physics, 2008, 104 (08):
[15] Quadrics of codimension 4 in C7 and their automorphisms
Anisova, EG
MATHEMATICAL NOTES, 1998, 64 (5-6) : 697 - 703
[16] Molecular dynamics simulations of C7/C7′-linked pyrrolobenzodiazepine (PBD) dimers
Jackson, Paul J. M.
Rahman, Khondaker Miraz
Thurston, David E.
CANCER RESEARCH, 2015, 75
[17] Five new polymorphisms in the complement C7 gene and their association with C7 deficiency
Fernie, BA
Hobart, MJ
EXPERIMENTAL AND CLINICAL IMMUNOGENETICS, 1999, 16 (03) : 150 - 161
[18] Mapping of C7 dermatome following total C7 root transfer in humans
Lu, J. Z.
Jin, X.
Xu, J. G.
McNulty, M.
Kim, B. S.
Zhu, Y.
Weber, R.
MUSCLE & NERVE, 2007, 36 (04) : 572 - 572
[19] Molecular defects of the C7 gene in two patients with complement C7 deficiency
Barroso, Sonia
Rieubland, Claudine
Alvarez, Antonia Jose
Lopez-Trascasa, Margarita
Bart, Pierre-Alexandre
Nunez-Roldan, Antonio
Sanchez, Berta
IMMUNOLOGY, 2006, 118 (02) : 257 - 260
[20] Extractive Distillation of C7 Hydrocarbon Mixture in the Presence of Furfural
Steltenpohl, Pavol
Graczova, Elena
Chlebovec, Matus
PRES'09: 12TH INTERNATIONAL CONFERENCE ON PROCESS INTEGRATION, MODELLING AND OPTIMISATION FOR ENERGY SAVING AND POLLUTION REDUCTION, PTS 1 AND 2, 2009, 18 : 201 - 206

← 1 2 3 4 5 →