Table 4 Fitting results for the Ti K edge data.

From: Evidence from EXAFS for Different Ta/Ti Site Occupancy in High Critical Current Density Nb3Sn Superconductor Wires

Sample ID, fit type

Scattering Path

N (Fixed)

R (fit)

σ2 (Å2)

Site Occupancy

Ti #1, two-site fit

Ti – Nb1

2

2.67

0.0096

1.0

Ti – Sn

4

2.91

0.0066

1.0

Ti – Nb2

8

3.25

0.0164

1.0

Ti #2, two-site fit

Ti – Nb1

2

2.66

0.0054

1.0

Ti – Sn

4

2.93

0.0059

1.0

Ti – Nb2

8

3.236

0.0110

1.0

Ta + Ti, two-site fit

Ti – Nb1

2

2.66

0.0079

1.0

Ti – Sn

4

2.92

0.0062

1.0

Ti – Nb2

8

3.240

0.0147

1.0

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