Material Specification for Bi:221; [Bi(Pb)-Sr(La)-Cu-O]
Process: Solid State Reaction
Notes: "Mixtures of powder of Bi2O3, PbO, SrCO3, La2O3 and CuO were fired at 800 °C for 20 h, reground, fired at 800 °C for 20 h, pressed into pellets, sintered at 810 °C for 20 h and cooled in the furnace."
Formula: Bi1.6Pb0.5Sr1.9-xLaxCu1.05Oy
Informal Name: Bi:221
Chemical Family: Bi(Pb)-Sr(La)-Cu-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Resistivity (normal state) for Bi:221; [Bi(Pb)-Sr(La)-Cu-O]
| x of Lax (formula units) |
Temperature (K) |
Resistivity (normal state) (mΩ·cm) |
| 0.0 |
7 |
2.1 |
| 0.0 |
20 |
2.0 |
| 0.0 |
63 |
2.0 |
| 0.0 |
126 |
2.2 |
| 0.0 |
185 |
2.4 |
| 0.0 |
235 |
2.6 |
| 0.0 |
277 |
3.0 |
| 0.1 |
5 |
0.0 |
| 0.1 |
8 |
0.1 |
| 0.1 |
13 |
0.1 |
| 0.1 |
18 |
1.2 |
| 0.1 |
66 |
1.4 |
| 0.1 |
127 |
2.0 |
| 0.1 |
180 |
2.0 |
| 0.1 |
230 |
2.2 |
| 0.1 |
286 |
2.4 |
| 0.5 |
19 |
0.1 |
| 0.5 |
21 |
0.6 |
| 0.5 |
23 |
1.3 |
| 0.5 |
28 |
2.0 |
| 0.5 |
68 |
2.3 |
| 0.5 |
118 |
2.7 |
| 0.5 |
190 |
3.1 |
| 0.5 |
282 |
3.7 |
Measurement Method: Four-probe method
"The electrical resistivity... was measured by a usual four probe method." No additional measurement details were noted.
Cautions: Unevaluated Data
Digitized data were obtained from Figure 1 of the paper.
Thermoelectric Power for Bi:221; [Bi(Pb)-Sr(La)-Cu-O]
| x of Lax (formula units) |
Temperature (K) |
Thermoelectric Power (µV/K) |
| 0.0 |
9 |
- 0.6 |
| 0.0 |
50 |
-10.9 |
| 0.0 |
100 |
-18.0 |
| 0.0 |
150 |
-20.2 |
| 0.0 |
200 |
-21.8 |
| 0.0 |
250 |
-23.5 |
| 0.0 |
300 |
-24.6 |
| 0.5 |
26 |
- 0.1 |
| 0.5 |
50 |
0.5 |
| 0.5 |
100 |
3.7 |
| 0.5 |
150 |
3.1 |
| 0.5 |
200 |
1.4 |
| 0.5 |
250 |
- 1.3 |
| 0.5 |
300 |
- 4.1 |
| 1.0 |
20 |
10.2 |
| 1.0 |
50 |
28.6 |
| 1.0 |
100 |
48.5 |
| 1.0 |
150 |
59.3 |
| 1.0 |
200 |
63.6 |
| 1.0 |
250 |
63.5 |
| 1.0 |
300 |
60.2 |
Measurement Method: Thermopower method
"The thermoelectric power S was measured by a dc method where a temperature gradient between both ends of the sample was 0.2 K - 0.8 K depending on the temperature region." No additional measurement details were noted.
Cautions: Evaluated Data
Digitized data were obtained from Figure 2 of the paper.
