Relaxation process in PbI2–Ag2O–V2O5–B2O3 system: Dielectric, AC conductivity and modulus studies

2013 ◽  
Vol 178 (11) ◽  
pp. 775-784 ◽  
Author(s):  
Manish S. Jayswal ◽  
D.K. Kanchan ◽  
Poonam Sharma ◽  
Nirali Gondaliya
Author(s):  
Pınar Oruç ◽  
Neslihan Turan ◽  
Yeşim Demirölmez ◽  
Ayten Seçkin ◽  
Şükrü Çavdar ◽  
...  

2007 ◽  
Vol 90 (1) ◽  
pp. 125-131 ◽  
Author(s):  
P. Muralidharan ◽  
N. Nallamuthu ◽  
I. Prakash ◽  
N. Satyanarayana ◽  
M. Venkateswarlu

Author(s):  
T. Sato ◽  
S. Kitamura ◽  
T. Sueyoshl ◽  
M. Iwatukl ◽  
C. Nielsen

Recently, the growth process and relaxation process of crystalline structures were studied by observing a SI nano-pyramid which was built on a Si surface with a UHV-STM. A UHV-STM (JEOL JSTM-4000×V) was used for studying a heated specimen, and the specimen was kept at high temperature during observation. In this study, the nano-fabrication technique utilizing the electromigration effect between the STM tip and the specimen was applied. We observed Si atoms migrated towords the tip on a high temperature Si surface.Clean surfaces of Si(lll)7×7 and Si(001)2×l were prepared In the UHV-STM at a temperature of approximately 600 °C. A Si nano-pyramid was built on the Si surface at a tunneling current of l0nA and a specimen bias voltage of approximately 0V in both polarities. During the formation of the pyramid, Images could not be observed because the tip was stopped on the sample. After the formation was completed, the pyramid Image was observed with the same tip. After Imaging was started again, the relaxation process of the pyramid started due to thermal effect.


2015 ◽  
Vol 8 (3) ◽  
pp. 2176-2188 ◽  
Author(s):  
Keisham Nanao Singh

This article reports on the Dielectric Relaxation Studies of two Liquid Crystalline compounds - 7O.4 and 7O.6 - doped with dodecanethiol capped Silver Nanoparticles. The liquid crystal molecules are aligned homeotropically using CTAB. The low frequency relaxation process occurring above 1 MHz is fitted to Cole-Cole formula using the software Dielectric Spectra fit. The effect of the Silver Nanoparticles on the molecular dipole dynamics are discussed in terms of the fitted relaxation times, Cole-Cole distribution parameter and activation energy. The study indicate a local molecular rearrangement of the liquid crystal molecules without affecting the order of the bulk liquid crystal molecules but these local molecules surrounding the Silver Nanoparticles do not contribute to the relaxation process in the studied frequency range. The observed effect on activation energy suggests a change in interaction between the nanoparticles/liquid crystal molecules.


2018 ◽  
Vol 93 (5) ◽  
pp. 603-610 ◽  
Author(s):  
Samia Mathlouthi ◽  
Abderrazek Oueslati ◽  
Bassem Louati

2008 ◽  
Vol 403 (13-16) ◽  
pp. 2331-2337 ◽  
Author(s):  
M.M. El-Nahass ◽  
A.M. Farid ◽  
K.F. Abd El-Rahman ◽  
H.A.M. Ali

2021 ◽  
Vol 96 ◽  
pp. 107093
Author(s):  
Vera P. Pavlović ◽  
Dragana Tošić ◽  
Radovan Dojčilović ◽  
Duško Dudić ◽  
Miroslav D. Dramićanin ◽  
...  

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