scholarly journals Long-time relaxation dynamics of a spin coupled to a Chern insulator

2021 ◽  
Vol 103 (2) ◽  
Author(s):  
Michael Elbracht ◽  
Michael Potthoff
Keyword(s):  
Relaxation Dynamics ◽  
Time Relaxation ◽  
Long Time

Long time relaxation of resistance in La0.8Sr0.2MnO3 ceramics and La0.65Ca0.35 MnO3 films on ferroelectric substrates

2004 ◽  
Vol 1 (12) ◽  
pp. 3614-3618 ◽  
Author(s):  
Yu.V. Medvedev ◽  
N.I. Mezin ◽  
Yu.M. Nikolaenko ◽  
A.E. Pigur ◽  
N.V. Shishkova ◽  
...  
Keyword(s):  
Time Relaxation ◽  
Long Time

Experimental study of low-temperature long-time relaxation in epoxy resin

1987 ◽  
Vol 68 (3-4) ◽  
pp. 285-299 ◽  
Author(s):  
M. Koláč ◽  
B. S. Neganov ◽  
A. Sahling ◽  
S. Sahling
Keyword(s):  
Experimental Study ◽  
Low Temperature ◽  
Epoxy Resin ◽  
Time Relaxation ◽  
Long Time

scholarly journals Long-wavelength fluctuations and anomalous dynamics in 2-dimensional liquids

2019 ◽  
Vol 116 (46) ◽  
pp. 22977-22982 ◽  
Author(s):  
Yan-Wei Li ◽  
Chandan K. Mishra ◽  
Zhao-Yan Sun ◽  
Kun Zhao ◽  
Thomas G. Mason ◽  
...  
Keyword(s):  
System Size ◽  
Vibrational Amplitude ◽  
Relaxation Dynamics ◽  
Colloidal Systems ◽  
Long Wavelength ◽  
Disordered Solids ◽  
Melting Temperatures ◽  
Long Time ◽  
Liquid Dynamics ◽  
Anomalous Dynamics

In 2-dimensional systems at finite temperature, long-wavelength Mermin–Wagner fluctuations prevent the existence of translational long-range order. Their dynamical signature, which is the divergence of the vibrational amplitude with the system size, also affects disordered solids, and it washes out the transient solid-like response generally exhibited by liquids cooled below their melting temperatures. Through a combined numerical and experimental investigation, here we show that long-wavelength fluctuations are also relevant at high temperature, where the liquid dynamics do not reveal a transient solid-like response. In this regime, these fluctuations induce an unusual but ubiquitous decoupling between long-time diffusion coefficient D and structural relaxation time τ, where D∝τ−κ, with κ>1. Long-wavelength fluctuations have a negligible influence on the relaxation dynamics only at extremely high temperatures in molecular liquids or at extremely low densities in colloidal systems.

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