TRANSIENT DISCHARGING PROCESSES IN NEMATIC LIQUID-CRYSTALS

被引:62
作者
NAITO, H [1 ]
OKUDA, M [1 ]
SUGIMURA, A [1 ]
机构
[1] OSAKA SANGYO UNIV, DEPT INFORMAT SYST ENGN, DAITO, OSAKA 574, JAPAN
来源
PHYSICAL REVIEW A | 1991年 / 44卷 / 06期
关键词
D O I
10.1103/PhysRevA.44.R3434
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
Measurements of discharging current transients in pentyl cyanobiphenyl liquid crystals have been made at various applied voltages and temperatures. A prominent peak in the discharging transient is observed in both nematic and isotropic phase. A computer simulation based upon a random-walk method has been also carried out in order to explore the origin of such an anomalous peak. It is concluded that the occurrence of the anomalous peak is ascribed to a relaxation of an applied-electric-field-induced nonuniform distribution of space charges due to impurity ions incorporated in the liquid crystals.
引用
收藏
页码:R3434 / R3437
页数:4
相关论文
共 13 条
  • [1] BINDER K, 1988, MONTE CARLO METHODS
  • [2] Chandrasekhar S., 1977, LIQ CRYST
  • [3] ANISOTROPIC ELECTRICAL-CONDUCTIVITY OF MBBA CONTAINING TETRABUTYL-AMMONIUM TETRAPHENYL-BORIDE
    CHANG, R
    RICHARDSON, JM
    [J]. MOLECULAR CRYSTALS AND LIQUID CRYSTALS, 1974, 28 (1-2): : 189 - 200
  • [4] INVERSE CURRENTS AND CONTACT BEHAVIOUR OF SOME NEMATIC LIQUID CRYSTALS
    DERZHANSKI, A
    PETROV, AG
    [J]. PHYSICS LETTERS A, 1971, A 36 (04) : 307 - +
  • [5] NOTE ON TRANSIENT CURRENT MEASUREMENTS IN LIQUID CRYSTALS AND RELATED SYSTEMS
    HEILMEIE.GH
    HEYMAN, PM
    [J]. PHYSICAL REVIEW LETTERS, 1967, 18 (15) : 583 - &
  • [6] INCREASING PHENOMENON OF ABNORMAL ABSORPTION CURRENT IN LIQUID-CRYSTAL CELLS
    MADA, H
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 2-LETTERS, 1990, 29 (01): : L123 - L125
  • [7] MURATA Y, 1988, REP PROG POLYM PHYS, V31, P423
  • [8] TRANSIENT PHOTODISCHARGE CHARACTERISTICS OF PHOTOCONDUCTORS WITH DISPERSIVE TRANSPORT
    NAITO, H
    MOTOMURA, K
    OKUDA, M
    NAKAU, T
    MATSUSHITA, T
    [J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, 1984, 23 (03): : 296 - 301
  • [9] SEKI H, 1974, 5TH P INT C AM LIQ S, P1015
  • [10] ANOMALOUS PHOTOINDUCED CURRENT TRANSIENTS IN NEMATIC LIQUID-CRYSTALS
    SUGIMURA, A
    SONOMURA, H
    NAITO, H
    OKUDA, M
    [J]. PHYSICAL REVIEW LETTERS, 1989, 63 (05) : 555 - 557