scholarly journals Fluctuation conductivity due to the preformed local pairs

2016 ◽  
Vol 42 (10) ◽  
pp. 924-929
Author(s):  
T. Domański ◽  
M. Barańska ◽  
A. L. Solovjov
Keyword(s):  
Fluctuation Conductivity ◽  
Local Pairs

Peierls Transition and Fluctuation Conductivity in Thin Lead-Phthalocyanine (PbPc) Films

1985 ◽  
Vol 89 (1) ◽  
pp. K89-K94 ◽  
Author(s):  
M. Müller ◽  
Th. Frauenheim ◽  
C. Hamann
Keyword(s):  
Fluctuation Conductivity ◽  
Peierls Transition

Fluctuation conductivity analysis for Bi-2223 superconductors with different sintering time

2001 ◽  
Vol 357-360 ◽  
pp. 244-247 ◽  
Author(s):  
T. Sato ◽  
H. Nakane ◽  
N. Mori ◽  
S. Yoshizawa
Keyword(s):  
Fluctuation Conductivity ◽  
Sintering Time

FLUCTUATION-INDUCED CONDUCTIVITY OF POLYCRYSTALLINE Er1-xCexBa2Cu3O7-δ SUPERCONDUCTOR

2011 ◽  
Vol 25 (20) ◽  
pp. 1671-1681 ◽  
Author(s):  
YURI APARECIDO OPATA ◽  
ANDERSON ROSA KURELO ◽  
LINCOLN BRUM DE LEITE ◽  
GUSMÃO PINHEIRO ◽  
PEDRO RODRIGUES ◽  
...  
Keyword(s):  
Phase Transition ◽  
Power Law ◽  
Partial Substitution ◽  
Temperature Derivative ◽  
Electrical Measurements ◽  
Fluctuation Conductivity ◽  
Structural Distortions ◽  
Zero Resistance ◽  
Resistance State ◽  
Fluctuation Induced Conductivity

A detailed study of the effect caused by the partial substitution of Er by Ce on fluctuation conductivity of the Er 1-x Ce x Ba 2 Cu 3 O 7-δ; 0 ≤ x ≤ 0.10; is presented. The combined experimental results of structural and electrical measurements indicate that Ce substitutes Er for x ≤ 0.10 with no significant structural distortions. However, there is suppression of the superconducting state with zero-resistance state at temperatures ≥ 86.3 K. The results were analyzed in terms of the temperature derivative of the resistivity and the logarithmic temperature derivative of the conductivity to identify power-law divergences of the conductivity. The data revealed the occurrence of a two-stage intragranular-intergranular transition. Above the critical temperature, the Gaussian and critical regimes were observed. Also, from the critical exponents analysis, we observed a splitting of the pairing transition for Ce -doped samples, suggesting the occurrence of a phase separation. On approaching the zero resistance state, our results showed a power-law behavior that corresponds to a phase transition from a paracoherent to a coherent state of the granular array and which does not depend on Ce doping.

Analysis of fluctuation conductivity in Y1−хCdxBa2Cu3O7−δ (x = 0−0.4)

2020 ◽  
Vol 46 (9) ◽  
pp. 901-909
Author(s):  
V. M. Aliyev ◽  
R. I. Selim-zade ◽  
J. A. Ragimov ◽  
L. V. Omelchenko ◽  
E. V. Petrenko
Keyword(s):  
Fluctuation Conductivity

Upper critical field and fluctuation conductivity in Nb-doped strontium titanate thin films

2000 ◽  
Vol 62 (2) ◽  
pp. 1408-1413 ◽  
Author(s):  
Arnold Leitner ◽  
David Olaya ◽  
Charles T. Rogers ◽  
John C. Price
Keyword(s):  
Thin Films ◽  
Strontium Titanate ◽  
Critical Field ◽  
Upper Critical Field ◽  
Fluctuation Conductivity
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