Non-Gaussian and Cooperative Dynamics of Entanglement Strands in Polymer Melts

2021 ◽  
Author(s):  
Margarita Kruteva ◽  
Michaela Zamponi ◽  
Ingo Hoffmann ◽  
Jürgen Allgaier ◽  
Michael Monkenbusch ◽  
...  
Keyword(s):  
Polymer Melts ◽  
Cooperative Dynamics ◽  
Non Gaussian

scholarly journals Compact structure and non-Gaussian dynamics of ring polymer melts

Soft Matter ◽  
2014 ◽  
Vol 10 (20) ◽  
pp. 3649-3655 ◽  
Author(s):  
Ana R. Brás ◽  
Sebastian Gooßen ◽  
Margarita Krutyeva ◽  
Aurel Radulescu ◽  
Bela Farago ◽  
...  
Keyword(s):  
Polymer Melts ◽  
Compact Structure ◽  
Ring Polymer ◽  
Non Gaussian

Intermolecular Effects in the Dynamics of Polymer Melts: Interplay of Cooperative Dynamics and Entanglements

2010 ◽  
Author(s):  
Marina G. Guenza ◽  
A. D’Amore ◽  
Domenico Acierno ◽  
Luigi Grassia
Keyword(s):  
Polymer Melts ◽  
Cooperative Dynamics

Non-Gaussian 1 / f Noise and Conductance Fluctuations in Hydrogenated Amorphous Silicon

1992 ◽  
Vol 258 ◽  
Author(s):  
C. E. Parman ◽  
N. E. Israeloff ◽  
J. Kakalios
Keyword(s):  
Spectral Analysis ◽  
Amorphous Silicon ◽  
Hydrogenated Amorphous Silicon ◽  
Current Fluctuations ◽  
Noise Power ◽  
Effective Volume ◽  
Conductance Fluctuations ◽  
Cooperative Dynamics ◽  
Non Gaussian ◽  
Hydrogenated Amorphous

ABSTRACTStatistical analysis of the 1/f noise power spectrum of co-planar current fluctuations in n-type doped hydrogenated amorphous silicon (a-Si:H) find that the noise arises from a small number of correlated fluctuators. The noise power displays a complicated time dependence with the noise power changing in both magnitude and as a function of frequency. Spectral analysis of these noise power fluctuations display an approximate 1/f frequency dependence. These results are surprising given the effective volume (∼10-7 cm3) of the sample, and indicate that cooperative dynamics govern conductance fluctuations in a-Si:H.

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