Thermal hysteresis in low frequency dielectric response of charge density wave systems TaS3 and K0.3Mo03

2002 ◽  
Vol 12 (9) ◽  
pp. 313-314
Author(s):  
A. Akrap ◽  
D. Staresinic ◽  
K. Biljakovic ◽  
P. Lunkenheimer ◽  
A. Loidl
Keyword(s):  
Glass Transition ◽  
Low Temperature ◽  
Charge Density ◽  
Dielectric Response ◽  
Charge Density Wave ◽  
Thermal Hysteresis ◽  
Density Wave ◽  
Low Frequency ◽  
Dc Conductivity ◽  
Temperature Cycling

Low frequency dielectric response of charge density wave systems K0.3MoO3 and o-TaS3 shows hysteresis on temperature cycling. The closing of the hysteresis at low temperature coincides in both systems with the closing of the hysteresis in DC conductivity and corresponds to the temperature of the glass transition observed in dielectric response of these two systems. AC conducitivity is higher on heating, while DC conductivity is lower, i.e. two loops have opposite directions. Higher AC conducitivity (or dielectric response) is a consequence of more corrugated CDW phase on heating.

Low-frequency dielectric response of the charge-density wave in orthorhombicTaS3

1985 ◽  
Vol 31 (12) ◽  
pp. 8325-8328 ◽  
Author(s):  
R. J. Cava ◽  
R. M. Fleming ◽  
R. G. Dunn ◽  
E. A. Rietman
Keyword(s):  
Charge Density ◽  
Dielectric Response ◽  
Charge Density Wave ◽  
Density Wave ◽  
Low Frequency

Low-frequency dielectric response of charge-density wave pinned by commensurability in (2,5(OCH 3 ) 2 DCNQI) 2 Li

1997 ◽  
Vol 38 (3) ◽  
pp. 219-224 ◽  
Author(s):  
S Tomić ◽  
N Biškup ◽  
M Pinterić ◽  
J. U. von Schütz ◽  
H Schmitt ◽  
...  
Keyword(s):  
Charge Density ◽  
Dielectric Response ◽  
Charge Density Wave ◽  
Density Wave ◽  
Low Frequency

Metastability and hysteresis in the low-frequency dielectric response of the charge-density wave inK0.3MoO3

1986 ◽  
Vol 34 (2) ◽  
pp. 1184-1190 ◽  
Author(s):  
R. J. Cava ◽  
P. B. Littlewood ◽  
R. M. Fleming ◽  
L. F. Schneemeyer ◽  
E. A. Rietman
Keyword(s):  
Charge Density ◽  
Dielectric Response ◽  
Charge Density Wave ◽  
Density Wave ◽  
Low Frequency

scholarly journals Glass transition in charge-density-wave systems o-TaS3 and K0.3MoO3

2002 ◽  
Vol 12 (9) ◽  
pp. 15-18
Author(s):  
D. Staresinic ◽  
K. Biljakovic ◽  
W. Brutting ◽  
K. Hosseini ◽  
P. Monceau
Keyword(s):  
Glass Transition ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Relaxation Times ◽  
Low Frequency ◽  
Activation Energies ◽  
Temperature Evolution ◽  
One Dimensional ◽  
Free Carriers

We present experimental evidence for the glass transition in charge density wave (CDW) superstructure of two quasi one-dimensional systems, o-TaS3 and K0.3MoO3. Low frequency dielectric response of both systems exhibits typical glass-like phenomenology, featuring the splitting of the relaxational spectrum into two processes on decreasing the temperature and the subsequent freezing of primary or a process at finite temperature of glass transition Tg. Below Tg secondary, or β process becomes dominant. Activation energies obtained from the temperature evolution of the characteristic relaxation times of a and β processes correspond to the activation energies of the temperature evolution of the DC conductivity above and below Tg respectively. The results are discussed in respect to the relevant theories of low frequency CDW dynamics, with the emphasis on the Coulomb hardening of CDW in absence of screening by free carriers. An attempt to understand observed differences in freezing of CDW in o-TaS3 and K0.3MoO3 is made.

Low-frequency dielectric response of the charge-density wave in (TaSe4)2I

1986 ◽  
Vol 33 (4) ◽  
pp. 2439-2443 ◽  
Author(s):  
R. J. Cava ◽  
P. Littlewood ◽  
R. M. Fleming ◽  
R. G. Dunn ◽  
E. A. Rietman
Keyword(s):  
Charge Density ◽  
Dielectric Response ◽  
Charge Density Wave ◽  
Density Wave ◽  
Low Frequency

Dielectric response of the charge-density wave inK0.3MoO3

1984 ◽  
Vol 30 (6) ◽  
pp. 3228-3239 ◽  
Author(s):  
R. J. Cava ◽  
R. M. Fleming ◽  
P. Littlewood ◽  
E. A. Rietman ◽  
L. F. Schneemeyer ◽  
...  
Keyword(s):  
Charge Density ◽  
Dielectric Response ◽  
Charge Density Wave ◽  
Density Wave

scholarly journals Numerical based study on charge density wave dynamics in a one-dimensional conductor in the low temperature limit

2019 ◽  
Vol 12 ◽  
pp. 1666-1669 ◽  
Author(s):  
R. Essajai ◽  
O. Idrissi ◽  
A. Mortadi ◽  
N. Hassanain ◽  
A. Mzerd
Keyword(s):  
Low Temperature ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave ◽  
Temperature Limit ◽  
One Dimensional ◽  
Wave Dynamics

Low-temperature divergence of the charge-density-wave viscosity inK0.30MoO3, (TaSe4)2I, andTaS3

1986 ◽  
Vol 33 (8) ◽  
pp. 5450-5455 ◽  
Author(s):  
R. M. Fleming ◽  
R. J. Cava ◽  
L. F. Schneemeyer ◽  
E. A. Rietman ◽  
R. G. Dunn
Keyword(s):  
Low Temperature ◽  
Charge Density ◽  
Charge Density Wave ◽  
Density Wave
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