Material Specification for Ba:11; [Ba(K)-Bi-O]
Process: Electrochemical deposition
Notes: "The... samples... were grown by electrolytic methods... Care was taken that the constituents of the starting composition of the electrolytic bath were of high purity, especially as pertains to Na impurities in the KOH (<50 ppm na)... crystal #1 had mass 2.67±0.05 mg, and approximate dimensions 0.37x1.3x1.3 mm3... Crystal #2 was significantly smaller, with mass 0.73±0.05 mg and approximate dimensions 0.46x0.3x0.3 mm3." No additional processing details were noted.
Formula: Ba1-xKxBiO3
Informal Name: Ba:11
Chemical Family: Ba(K)-Bi-O
Chemical Class: Oxide
Structure Type:
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Critical Temperature for Ba:11; [Ba(K)-Bi-O]
| Critical Temperature (K) |
| 29 |
Measurement Method: SQUID magnetometer
"All magnetization measurements were performed on a Quantum Design MPMS2 SQUID magnetometer, with the sample glued on a long quartz fiber midway down its length, which was then glued with GE-7031 varnish inside a thin-walled plastic tube. The Ginsburg-Landau prediction in the dirty limit... (was used) for the zero-temperature value of the coherence length... to determine the penetration depth,... we (used)... the Landau-Ginsburg expression..."
Cautions: Evaluated Data
Critical Current Density for Ba:11; [Ba(K)-Bi-O]
| Temperature (K) |
Critical Current Density (kA/cm2) |
| 5 |
71 |
| 10 |
56 |
| 15 |
37 |
| 20 |
23 |
| 25 |
9 |
Measurement Method: SQUID magnetometer
"All magnetization measurements were performed on a Quantum Design MPMS2 SQUID magnetometer, with the sample glued on a long quartz fiber midway down its length, which was then glued with GE-7031 varnish inside a thin-walled plastic tube. The Ginsburg-Landau prediction in the dirty limit... (was used) for the zero-temperature value of the coherence length... to determine the penetration depth,... we (used)... the Landau-Ginsburg expression..."
Cautions: Evaluated Data
Digitized data were obtained from Figure 2b of the paper.
Penetration Depth for Ba:11; [Ba(K)-Bi-O]
| Penetration Depth (σ) |
| 1200±200 |
Measurement Method: SQUID magnetometer
"All magnetization measurements were performed on a Quantum Design MPMS2 SQUID magnetometer, with the sample glued on a long quartz fiber midway down its length, which was then glued with GE-7031 varnish inside a thin-walled plastic tube. The Ginsburg-Landau prediction in the dirty limit... (was used) for the zero-temperature value of the coherence length... to determine the penetration depth,... we (used)... the Landau-Ginsburg expression..."
Cautions: Evaluated Data
Coherence Length for Ba:11; [Ba(K)-Bi-O]
| Crystal # () |
Coherence Length (σ) |
| 1 |
58 ± 1 |
| 2 |
54 ± 1 |
Measurement Method: SQUID magnetometer
"All magnetization measurements were performed on a Quantum Design MPMS2 SQUID magnetometer, with the sample glued on a long quartz fiber midway down its length, which was then glued with GE-7031 varnish inside a thin-walled plastic tube. The Ginsburg-Landau prediction in the dirty limit... (was used) for the zero-temperature value of the coherence length... to determine the penetration depth,... we (used)... the Landau-Ginsburg expression..."
Cautions: Evaluated Data
Critical Field Strength Hc1 for Ba:11; [Ba(K)-Bi-O]
| Temperature (K) |
Crit.Mag.Field Strength Hc1 (kA/m) |
| 5 |
30.9 |
| 10 |
25.5 |
| 12 |
21.7 |
| 15 |
20.0 |
| 20 |
11.7 |
| 25 |
2.5 |
Measurement Method: SQUID magnetometer
"All magnetization measurements were performed on a Quantum Design MPMS2 SQUID magnetometer, with the sample glued on a long quartz fiber midway down its length, which was then glued with GE-7031 varnish inside a thin-walled plastic tube. The Ginsburg-Landau prediction in the dirty limit... (was used) for the zero-temperature value of the coherence length... to determine the penetration depth,... we (used)... the Landau-Ginsburg expression..."
Cautions: Evaluated Data
Digitized data were obtained from Figure 2a of the paper.
Critical Field Strength Hc2 for Ba:11; [Ba(K)-Bi-O]
| Temperature (K) |
Crit.Mag.Field Strength Hc2 (MA/m) |
| 17.9 |
4.35 |
| 22.0 |
2.72 |
| 22.5 |
2.34 |
| 23.8 |
1.97 |
| 25.2 |
1.54 |
| 25.9 |
1.12 |
| 27.3 |
0.75 |
| 27.7 |
0.33 |
| 28.2 |
0.14 |
Measurement Method: SQUID magnetometer
"All magnetization measurements were performed on a Quantum Design MPMS2 SQUID magnetometer, with the sample glued on a long quartz fiber midway down its length, which was then glued with GE-7031 varnish inside a thin-walled plastic tube. The Ginsburg-Landau prediction in the dirty limit... (was used) for the zero-temperature value of the coherence length... to determine the penetration depth,... we (used)... the Landau-Ginsburg expression..."
Cautions: Evaluated Data
Digitized data were obtained from Figure 1 of the paper.
