DIELECTRIC DISPERSIONS OF MIXED-CRYSTALS RB1-X(NH4)XH2PO4 AND RB1-X(ND4)XD2PO4

被引：21
作者：
HE, P
DEGUCHI, K
HIROKANE, M
NAKAMURA, E
机构：
[1] Department of Materials Science, Faculty of Science, Hiroshima University
来源：
JOURNAL OF THE PHYSICAL SOCIETY OF JAPAN | 1990年 / 59卷 / 05期
关键词：
dielectric dispersion; effect of deuteration; glass state; Rb1-x(NH4)xH2PO4; Vogel-Fulcher;
D O I：
10.1143/JPSJ.59.1835
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Dielectric dispersions in mixed crystals Rb1-x(NH4)xH2PO4 (RADP, x=0.35) and Rb1-x(ND4)xD2PO4 (D-RADP, x=0.35) were studied around their glass-freezing temperatures. The complex dielectric constants along the a- and c-axes have consistently been described by the Vogel-Fulcher law of the relaxation time τ=τ0exp {E/(T-T0)} with a Gaussian distribution of the energy parameter E around the mean value E0. The values of τ0, T0 and E0 of D-RADP are several times as large as those of RADP. No appreciable anisotropic character was found between the dispersions along the a- and c-axes in both RADP and D-RADP. © 1990, The Physical Society of Japan. All rights reserved.
引用
收藏
页码：1835 / 1840
页数：6
相关论文
共 22 条
[1]   LOGARITHMIC DYNAMIC SCALING IN SPIN-GLASSES [J].
BINDER, K ;
YOUNG, AP .
PHYSICAL REVIEW B, 1984, 29 (05) :2864-2867
[2]   DIELECTRIC-RELAXATION OF MIXED-CRYSTALS OF RB1-X(NH4)XH2PO4 AT MICROWAVE-FREQUENCIES [J].
BRUCKNER, HJ ;
COURTENS, E ;
UNRUH, HG .
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1988, 73 (03) :337-342
[3]   SCALING DIELECTRIC DATA ON RB1-X(NH4)XH2PO4 STRUCTURAL GLASSES AND THEIR DEUTERATED ISOMORPHS [J].
COURTENS, E .
PHYSICAL REVIEW B, 1986, 33 (04) :2975-2978
[4]   VOGEL-FULCHER SCALING OF THE SUSCEPTIBILITY IN A MIXED-CRYSTAL PROTON GLASS [J].
COURTENS, E .
PHYSICAL REVIEW LETTERS, 1984, 52 (01) :69-72
[5]   SHORT-RANGE ORDERING AND FREEZING IN A RANDOMLY MIXED FERROELECTRIC-ANTIFERROELECTRIC CRYSTAL [J].
COURTENS, E ;
ROSENBAUM, TF ;
NAGLER, SE ;
HORN, PM .
PHYSICAL REVIEW B, 1984, 29 (01) :515-518
[6]  
COURTENS E, 1983, HELV PHYS ACTA, V56, P705
[7]  
COURTENS E, 1985, JPN J APPL PHYS S, V24, P70
[8]  
COURTENS E, 1982, J PHYS LETT, V43, pL204
[9]   THE STRUCTURE OF THE GLASS PHASE OF RB1-X(ND4)XD2PO4 [J].
COWLEY, RA ;
RYAN, TW ;
COURTENS, E .
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1986, 65 (02) :181-192
[10]   CRITICAL RELAXATION OF SHORT-RANGE CORRELATIONS IN THE MIXED-CRYSTAL RB1-X(ND4)XD2PO4 [J].
GRIMM, H ;
MARTINEZ, J .
ZEITSCHRIFT FUR PHYSIK B-CONDENSED MATTER, 1986, 64 (01) :13-18
123