Coherent echoes in glasses and crystals with point defects

被引:16
作者
Enss, C
Weis, R
Ludwig, S
Hunklinger, S
机构
[1] Inst. f. Angewandte Physik, Universität Heidelberg, 69120 Heidelberg
关键词
D O I
10.1007/BF02548142
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
Dielectric echo experiments have proven to be a very suitable tool for the investigation of the dynamics of tunneling states in solids. In particular, rotary echoes have been used to determine the distribution of the tunnel splitting of amorphous solids and crystalline defect systems like (KBr)(1-x)(KCN)(x), and to investigate the tunneling motion of pairs of strongly coupled Li+ ions in KCl. Recently progress has been made in understanding the decay of spontaneous echoes in glasses which is caused by spectral diffusion processes. The expected non-exponential decay of the echo amplitude has been observed for several glasses. While the temperature dependence of the phase memory time is in good agreement with theoretical predictions, the cross-over from the non-exponential to the exponential decay regime occurs at much shorter times than expected.
引用
收藏
页码:3287 / 3294
页数:8
相关论文
共 37 条
[21]   SPECTRAL-DIFFUSION DECAY IN ECHO EXPERIMENTS [J].
HU, P ;
WALKER, LR .
PHYSICAL REVIEW B, 1978, 18 (03) :1300-1305
[22]   ULTRASONIC ATTENUATION IN GLASSES AT LOW-TEMPERATURES [J].
JACKLE, J .
ZEITSCHRIFT FUR PHYSIK, 1972, 257 (03) :212-223
[23]   GENERAL-THEORY OF SPECTRAL DIFFUSION AND ECHO DECAY IN GLASSES [J].
LAIKHTMAN, BD .
PHYSICAL REVIEW B, 1985, 31 (01) :490-504
[24]   DENSITY OF LOW-ENERGY STATES IN VITREOUS SILICA - SPECIFIC-HEAT AND THERMAL-CONDUCTIVITY DOWN TO 25 MK [J].
LASJAUNIAS, JC ;
RAVEX, A ;
VANDORPE, M ;
HUNKLINGER, S .
SOLID STATE COMMUNICATIONS, 1975, 17 (09) :1045-1049
[25]  
MAYNARD R, 1980, J PHYS LETT-PARIS, V41, pL291, DOI 10.1051/jphyslet:019800041012029100
[26]   EXPLANATION FOR THE UNIVERSAL LOW-TEMPERATURE AND DYNAMICAL PROPERTIES OF A PARTICULAR GLASS [J].
MEISSNER, M ;
KNAAK, W ;
SETHNA, JP ;
CHOW, KS ;
DEYOREO, JJ ;
POHL, RO .
PHYSICAL REVIEW B, 1985, 32 (09) :6091-6093
[27]   LOW-TEMPERATURE PROPERTIES OF THE ORIENTATIONAL GLASS KBR1-X(CN)X [J].
MOY, D ;
DOBBS, JN ;
ANDERSON, AC .
PHYSICAL REVIEW B, 1984, 29 (04) :2160-2167
[28]   TUNNELING STATES OF DEFECTS IN SOLIDS [J].
NARAYANA.V ;
POHL, RO .
REVIEWS OF MODERN PHYSICS, 1970, 42 (02) :201-&
[29]   Tunneling States in Amorphous Solids [J].
Phillips, W. A. .
JOURNAL OF LOW TEMPERATURE PHYSICS, 1972, 7 (3-4) :351-360
[30]  
PHILLIPS WA, 1981, SPRINGER SERIES TOPI, V24