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NIST High Temp. Superconducting Materials (HTS) Database:

NIST Standard Reference Database 62

Last Update to Data Content: 1996

DOI: https://doi.org/10.18434/T4KP8J

Bibliographic Information

Title: Specific Heat of the Ceramic Superconductor Bi2Sr2CuO6 from 0.4 to 20 K
Author(s): S.J. Collocott, R. Driver, and C. Andrikidis
Publication: Physica C Volume: 173 Issue: Not Available Year: 1991 Page(s): 117-124
Editor(s): Not Available
Publisher: Elsevier Science Publishers B.V.
Language: English
Notes: Not Available
Keywords: Material Specification, Critical Temperature, Resistance (normal state), Specific Heat

Materials and Properties

Bi:221; [Bi-Sr-Cu-O]
Material Specification for Bi:221; [Bi-Sr-Cu-O] Process: Solid State Reaction
Notes: "... polycrystalline specimens... were prepared by reacting mixtures of Bi2O3 (≥99%), SrCO3 (≥99%) and CuO (≥98%) in the temperature range 760-800 °C for 30 to 40 h, with 2 to 3 intermediate regrindings... After pressing and sintering the pellets were furnace cooled to 400 °C over about 90 min, annealed at the temperature in air for 4 to 5 h, and furnace cooled to <300 °C." The authors indicate that specimen BS3 was sintered at 810 °C and had a nominal composition of Bi2.08Sr1.92Cu1.1O6+δ.
Formula: Bi2Sr2CuO6
Informal Name: Bi:221
Chemical Family: Bi-Sr-Cu-O
Chemical Class: Oxide
Structure Type:
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Critical Temperature for Bi:221; [Bi-Sr-Cu-O]
Specimen () Critical Temperature (K)
BS3 6.8
Measurement Method: Four-probe method
"Resistance versus temperature measurements were made on a bar shaped piece (approximately 6 mm long x 2.5 mm wide x 1 mm thick) of each specimen using a conventional four probe DC technique..."

Cautions: Evaluated Data
Resistance (normal state) for Bi:221; [Bi-Sr-Cu-O]
Magnetic Field (T) Temperature (K) Resistance (normal state) (mΩ)
7.0 1.6 45
7.0 2.1 55
7.0 2.6 69
7.0 3.3 79
7.0 3.8 90
7.0 4.4 94
7.0 5.0 103
7.0 5.5 103
7.0 6.1 111
7.0 6.6 115
7.0 7.5 122
7.0 8.0 126
7.0 8.6 125
7.0 10.2 131
7.0 11.2 135
7.0 12.3 135
7.0 14.0 135
5.0 1.7 32
5.0 2.2 44
5.0 3.3 65
5.0 4.4 85
5.0 5.3 91
5.0 6.0 104
5.0 6.4 109
5.0 7.6 117
5.0 8.5 125
5.0 9.5 129
5.0 10.8 132
5.0 12.4 135
5.0 14.0 135
2.0 1.8 16
2.0 3.0 18
2.0 3.7 31
2.0 5.0 53
2.0 6.0 69
2.0 7.3 89
2.0 8.6 106
2.0 9.2 111
2.0 9.8 120
2.0 11.8 127
2.0 13.4 132
2.0 16.0 134
1.0 1.8 10
1.0 3.0 13
1.0 3.4 19
1.0 4.0 30
1.0 5.2 48
1.0 5.7 59
1.0 6.7 80
1.0 7.9 100
1.0 8.8 116
1.0 9.4 122
1.0 10.6 131
1.0 12.1 135
1.0 13.9 135
0.5 2.3 6
0.5 3.4 12
0.5 4.7 22
0.5 5.2 28
0.5 5.9 42
0.5 7.3 75
0.5 7.9 89
0.5 8.5 101
0.5 9.1 112
0.5 10.6 131
0.5 11.5 132
0.5 12.5 134
0.5 13.9 135
0.25 2.3 6
0.25 4.4 12
0.25 5.4 22
0.25 6.0 24
0.25 7.5 59
0.25 8.0 82
0.25 8.6 96
0.25 9.2 108
0.25 9.7 120
0.25 10.7 129
0.25 12.11 134
0.25 13.30 135
0.25 13.9 135
0.1 2.6 6
0.1 3.5 9
0.1 4.6 10
0.1 5.7 15
0.1 6.6 24
0.1 7.6 47
0.1 8.1 67
0.1 8.6 89
0.1 9.7 121
0.1 10.7 130
0.1 11.7 132
0.1 12.7 135
0.1 13.4 135
0.1 13.8 135
0 7.1 1
0 7.5 6
0 8.1 34
0 8.6 68
0 9.2 100
0 9.7 118
0 10.7 128
0 11.8 133
0 13.1 135
0 13.9 136
Measurement Method: Four-probe method
"Resistance versus temperature measurements were made on a bar shaped piece (approximately 6 mm long x 2.5 mm wide x 1 mm thick) of each specimen using a conventional four probe DC technique..."

Cautions: Evaluated Data
Digitized data were obtained from Figure 2 of the paper.
Specific Heat for Bi:221; [Bi-Sr-Cu-O]
Temperature (K) Specific Heat (J kg-1 K-1)
0.5 0.019
0.5 0.017
0.6 0.017
1.0 0.028
1.3 0.031
2.1 0.041
2.4 0.069
2.8 0.093
3.2 0.115
3.4 0.145
3.8 0.186
3.9 0.202
Measurement Method: Heat-pulse calorimeter
The authors cite S. J. Collocott, Aust. J. Phys., Vol. 36, 573 (1983) and summarize the procedure as follows. "The specimens for the C

measurements were typically of mass 3 g to 4 g and C

was measured using a 3He-4He semi-adiabatic heat-pulse calorimeter..."

Cautions: Evaluated Data
Digitized data were obtained from Figure 5 of the paper.