Fluctuation conductivity and pseudogap in single crystals under pressure with transport current flowing under an angle 45° to the twin boundaries

2014 ◽  
Vol 501 ◽  
pp. 24-31 ◽  
Author(s):  
A.L. Solovjov ◽  
M.A. Tkachenko ◽  
R.V. Vovk ◽  
A. Chroneos
Keyword(s):  
Single Crystals ◽  
Transport Current ◽  
Twin Boundaries ◽  
Fluctuation Conductivity

Fluctuation conductivity analysis for Bi2Sr2(Ca1−xYx)Cu2O8+δ single crystals in both overdoped and underdoped regimes

2007 ◽  
Vol 463-465 ◽  
pp. 126-130 ◽  
Author(s):  
Tatsunori Aoki ◽  
Yasushi Oikawa ◽  
Changman Kim ◽  
Takashi Tamura ◽  
Hajime Ozaki ◽  
...  
Keyword(s):  
Single Crystals ◽  
Fluctuation Conductivity

Direct observation of non-collinear vortex structures induced by twin boundaries in YBa2Cu3Oy single crystals

1996 ◽  
Vol 105 (5-6) ◽  
pp. 1105-1110 ◽  
Author(s):  
A. A. Zhukov ◽  
G. K. Perkins ◽  
J. V. Thomas ◽  
A. D. Caplin ◽  
H. K�pfer ◽  
...  
Keyword(s):  
Single Crystals ◽  
Direct Observation ◽  
Vortex Structures ◽  
Twin Boundaries

Vortex decoupling line and its anisotropy in single crystals observed by transport current measurements

1998 ◽  
Vol 11 (10) ◽  
pp. 935-940 ◽  
Author(s):  
V F Solovyov ◽  
V M Pan ◽  
H C Freyhardt ◽  
M H Ionescu ◽  
S X Dou
Keyword(s):  
Single Crystals ◽  
Transport Current

Effects of divalent impurities on the fluctuation conductivity of YBa 2 Cu 3 O 7 single crystals

2009 ◽  
Vol 404 (19) ◽  
pp. 3109-3112 ◽  
Author(s):  
V.N. Vieira ◽  
F.T. Dias ◽  
P. Pureur ◽  
J. Schaf
Keyword(s):  
Single Crystals ◽  
Fluctuation Conductivity

Twin boundaries in trained 10M Ni−Mn−Ga single crystals

2012 ◽  
Vol 67 (4) ◽  
pp. 364-367 ◽  
Author(s):  
R. Chulist ◽  
E. Pagounis ◽  
A. Böhm ◽  
C.-G. Oertel ◽  
W. Skrotzki
Keyword(s):  
Single Crystals ◽  
Twin Boundaries

Twin boundaries role in superconducting properties formation of single crystals YBa2Cu3O7−x

1993 ◽  
Vol 85 (5) ◽  
pp. 427-430 ◽  
Author(s):  
A.I. Belyaeva ◽  
S.V. Vojtsenya ◽  
V.P. Yuriyev ◽  
M.A. Obolenskii ◽  
A.V. Bondarenko
Keyword(s):  
Single Crystals ◽  
Superconducting Properties ◽  
Twin Boundaries

scholarly journals Peculiarities of pseudogap in Y0.95Pr0.05Ba2Cu3O7−δ single crystals under pressure up to 1.7 GPa

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
A. L. Solovjov ◽  
L. V. Omelchenko ◽  
E. V. Petrenko ◽  
R. V. Vovk ◽  
V. V. Khotkevych ◽  
...  
Keyword(s):  
Critical Temperature ◽  
Hydrostatic Pressure ◽  
Single Crystal ◽  
Single Crystals ◽  
Temperature Interval ◽  
Fluctuation Theory ◽  
Structural Defects ◽  
Fluctuation Conductivity ◽  
First Time ◽  
Effect Of Hydrostatic Pressure

AbstractThe effect of hydrostatic pressure up to P = 1.7 GPa on the fluctuation conductivity σ′(T) and pseudogap ∆*(T) in Y0.95Pr0.05Ba2Cu3O7−δ single crystal with critical temperature Тс = 85.2 K (at P = 0) was investigated. The application of pressure leads to the increase in Tc with dTc/dP = +1.82 K∙GPa−1 while the resistance decreases as dlnρ(100 K)/dP = −(10.5 ± 0.2) %∙GPa−1. Regardless of the pressure, in the temperature interval from Tc to T0 (~88 K at P = 0) the behaviour of σ′(T) is well described by the Aslamazov – Larkin (AL – 3D) fluctuation theory, and above the T0 by the Lawrence – Doniach theory (LD). The Maki-Thompson (MT – 2D) fluctuation contribution is not observed. This indicates the presence of structural defects in the sample induced by Pr. Here it is determined for the first time that when the pressure is applied to the Y1−xPrxBa2Cu3O7−δ single crystal, the pseudogap increases as dlnΔ*/dP = 0.17 GPa–1.

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