The intrinsic upper critical field of high-Tc superconductors

1997 ◽  
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X.-J. Xu ◽  
L. Fu ◽  
Y.-H. Zhang
1989 ◽  
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W. Boon ◽  
J.-P. Locquet ◽  
M. D'Halle ◽  
J. Vanacken ◽  
C. Van Haesendonck ◽  
...  

Physica B+C ◽  
1986 ◽  
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Naoki Toyota ◽  
Madoka Tokumoto ◽  
Hiroyuki Anzai ◽  
Gunzi Saito ◽  
...  

1988 ◽  
Vol 13 (5) ◽  
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J.C. Ousset ◽  
J.F. Bobo ◽  
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N. Cheggour

1990 ◽  
Vol 51 (C1) ◽  
pp. C1-997-C1-1002 ◽  
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D. BOLMONT ◽  
B. LOEGEL

1994 ◽  
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A.I. Golovashkin ◽  
E.V. Pechen ◽  
S.V. Antonenko ◽  
V.F. Elesin ◽  
...  

1988 ◽  
Vol 02 (06) ◽  
pp. 1387-1393 ◽  
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C. ANDRIKIDIS ◽  
R. DRIVER ◽  
G. K. WHITE

The heat capacity, Cp, has been measured in the range 0.4 to 20 K and the linear thermal expansivity, α, in the range 2 to 283 K of YBa 2 Cu 3 O 7. Below 4 K Cp exhibits a T-term (≈ 7.5 T mJ/mol.K ), but in general both Cp(T) and α(T) have magnitudes and T-dependences that are not very different from other ceramics. The electrical resistance of YBa 2 Cu 3 O 7 and Bi 2 Sr 1.7 CaCu 2 O 8 samples have been measured in the range 20 to 120 K and in magnetic fields of up to 7 T. In all cases the value of T c is highly sensitive to the applied magnetic field. The upper critical field, B c2 (0), is estimated to be 68.5 T for YBa 2 Cu 3 O 7 and 55 T for Bi 2 Sr 1.7 CaCu 2 O 8.


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