Origin of the plateau in the temperature dependence of the normalized magnetization relaxation rate in disordered high-temperature superconductors

2008 ◽  
Vol 78 (21) ◽  
Author(s):  
L. Miu ◽  
D. Miu ◽  
T. Petrisor ◽  
A. El Tahan ◽  
G. Jakob ◽  
...  
Keyword(s):  
High Temperature ◽  
Temperature Dependence ◽  
Relaxation Rate ◽  
High Temperature Superconductors ◽  
Magnetization Relaxation

Temperature Dependence of Positron Annihilation Parameters in High Temperature Superconductors

1992 ◽  
Vol 105-110 ◽  
pp. 477-484 ◽  
Author(s):  
C.S. Sundar ◽  
A. Bharathi ◽  
Yan Ching Jean ◽  
W.Y. Ching ◽  
X. Lu ◽  
...  
Keyword(s):  
High Temperature ◽  
Temperature Dependence ◽  
Positron Annihilation ◽  
High Temperature Superconductors

TEMPERATURE DEPENDENCE OF THE HALL EFFECT IN La2−xSrxCuO4 AND ABa2Cu3O7 (A=Y, Gd) HIGH TEMPERATURE SUPERCONDUCTORS

1987 ◽  
Vol 01 (03n04) ◽  
pp. 1067-1070 ◽  
Author(s):  
M. Petravić ◽  
A. Hamzić ◽  
B. Leontić ◽  
L. Forró
Keyword(s):  
High Temperature ◽  
Temperature Dependence ◽  
Hall Effect ◽  
Normal State ◽  
High Temperature Superconductors ◽  
The Other ◽  
Hall Constant ◽  
High Temperature Superconducting ◽  
Superconducting Ceramics ◽  
Hall Effect Measurements

We present Hall effect measurements in the normal state of the high temperature superconducting ceramics La2−xSrxCuO4 (x=0, 0.1, 0.15, 0.2, 0.25, 0.3), YBa2Cu3o7 and GdBa2Cu3O7 . The first family has temperature independent Hall constant for x>0, while in the other two systems RH is proportional to 1/T. From the Hall effect it follows that the transport in these compounds is hole-like.

INTRINSIC MAGNETIZATION RELAXATION PROPERTIES OF Y1:2:3

1991 ◽  
Vol 05 (04) ◽  
pp. 277-284 ◽  
Author(s):  
Y.Y. XUE ◽  
Z.J. HUANG ◽  
L. GAO ◽  
P.H. HOR ◽  
R.L. MENG ◽  
...  
Keyword(s):  
High Temperature ◽  
Critical State ◽  
Flux Pinning ◽  
High Temperature Superconductors ◽  
Distribution Model ◽  
Magnetization Relaxation ◽  
Pinning Potential ◽  
Monotonically Increasing Function ◽  
Monotonically Decreasing Function ◽  
Increasing Function

The intrinsic magnetization relaxation rate R(T)≡dM(t, T)/d ln t and the pinning potential U0(T) have been determined for single crystalline and melt-textured YBa2Cu3O7 (Y1:2:3) high temperature superconductors of different sizes in their critical state. In contrast to previous reports, R(T) is a monotonically decreasing function and U0(T), deduced from R(T), a monotonically increasing function of temperature. The unusual temperature dependence of U0 is qualitatively explained in terms of a collective flux pinning. The U0-distribution model previously proposed for HTS’s is not consistent with certain experimental observations.

Microscopic calculations of the NMR relaxation rate for high temperature superconductors

1989 ◽  
Vol 162-164 ◽  
pp. 1529-1530
Author(s):  
O.V. Dolgov ◽  
E.G. Maksimov ◽  
I.I. Mazin ◽  
D.Yu. Savrasov
Keyword(s):  
High Temperature ◽  
Relaxation Rate ◽  
High Temperature Superconductors ◽  
Nmr Relaxation
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