Let us compare the characteristic lengths of some of the superconductors mentioned in this section (inspired from the book Superconductivity, Physics and applications, K. Fossheim & A. Sudbo, Wiley & Sons ed.)
|
Exemples |
TCmax (K) |
Theory |
Type |
BCmax(T) |
ξ(nm) |
λ (nm) |
|---|---|---|---|---|---|---|---|
Metals |
Hg |
A few K |
BCS |
I |
From 0.01 to 0.1 |
About 1000 nm |
65 |
Alloys |
Nb3Sn |
18 K |
BCS |
II |
24 |
3 |
65 |
Diborure de magnésium |
MgB2 |
39 K |
BCS with 2 bands |
II |
<= 50 T |
15 nm |
50 nm |
Heavy Fermions |
|
|
? |
II |
|
12 |
600 |
Organic superconductors |
k-BEDTTTF2 |
10.5 |
? |
II |
|
1 à 10 |
980 |
Fullerenes |
K3C60 |
40 K |
? |
II |
<= 30 T |
3 |
240 |
Cuprate |
YBa2Cu3O7 |
92 |
? |
II |
115 T |
0.5 to 2.5 |
150 to 500 |
Pnictide |
Ba(Fe1-xCox)2As2 |
56 |
? |
II |
~60 T |
A few nm |
A few hundreds |
