Materials database: Nb₃Sn

1. Basic parameters 

Structure: A15

Lattice constant: a = 5.293 Å

T_c ~18 K

Martensitic transition temperature T_m = 43 K

Upper critical field H_c2 ~25 T

Thermodynamic critical field H_c = 0.52 T

Lower critical field H_c1 = 0.038 T

Superconducting energy gap D = 3.4 meV

Ginzburg-Landau coherence length  s = 3.6 nm

Ginzburg-Landau penetration depth  s = 124 nm

(source: Arno Godeke dissertation 2005)

2. I_c axial strain dependence (typical)

(Source: NHMFL measured on OST 0.4 mm internal tin RRP conductor)

1. Ic magnetic field depenced (typical)

(Source: NHMFL measured on SMI 0.6 mm PIT conductor)

2. Magnetization (typical)

(Source: NHMFL measured on SMI 0.6 mm PIT conductor)