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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: Transport Properties of Bi2Sr2-xLaxCuO6+δ
Author(s): A.J. Smits, W.J. Elion, J.M van Ruitenbeek, L.J. de Jongh, and W.A. Groen
Publication: Physica C Volume: 199 Issue: Not Available Year: 1992 Page(s): 276-284
Editor(s): Not Available
Publisher: Elsevier Science Publishers B.V.
Language: English
Notes: Not Available
Keywords: Material Specification, Critical Temperature, Hall Coefficient, Thermoelectric Power

Materials and Properties

Bi:221; [Bi-Sr(La)-Cu-O]
Material Specification for Bi:221; [Bi-Sr(La)-Cu-O] Process: Solid State Reaction
Notes: The authors cite W.A. Groen et al., Solid State Commun., Vol. 72, 697 (1989), and summarize the procedure as follows. "The measurements were done on pressed powder, sintered pellets... For the TEP measurements the sample dimensions were typically 1 x 2 x 10 mm3, while the R measurements were performed on 1 x 4 x 4 mm3 shaped samples. Both were cut from the same pressed pellets..."
Formula: Bi2Sr2-xLaxCuO6+y
Informal Name: Bi:221
Chemical Family: Bi-Sr(La)-Cu-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:

Critical Temperature for Bi:221; [Bi-Sr(La)-Cu-O]
x of Lax (formula units) y of O6+y (formula units) Hole Concentration () Critical Temperature (K)
0.0 0.17 0.33 0
0.1 0.20 0.30 12
0.2 0.30 0.40 18
0.4 0.35 0.30 20
0.5 0.38 0.26 21
0.6 0.42 0.23 5
1.0 0.60 0.19 0
Measurement Method: Unknown Tc method

Cautions: Unevaluated Data
The authors cite W.A. Groen et al., Solid State Commun. 72 (1989) 697, for the Tc data.
Hall Coefficient for Bi:221; [Bi-Sr(La)-Cu-O]
x of Lax (formula units) Temperature (K) Hall Coefficient (mm3 /C)
0.1 11 1.0
0.1 5 1.4
0.1 15 1.6
0.1 20 2.4
0.1 23 2.7
0.1 27 2.9
0.1 49 3.0
0.1 66 3.1
0.1 83 3.1
0.1 102 2.9
0.1 141 2.9
0.1 177 2.7
0.1 211 2.5
0.1 244 2.5
0.1 293 2.2
0.0 68 2.1
0.0 76 1.9
0.0 89 1.8
0.0 98 1.7
0.0 109 1.6
0.0 115 1.5
0.0 158 1.3
0.0 179 1.2
0.0 206 1.1
0.0 222 1.1
0.0 239 0.9
0.0 266 0.8
Measurement Method: Hall effect method
The authors cite L.J. van der Pauw, Philips Res. Repts., Vol. 13, 1 (1958), and summarize the procedure as follows. "The Hall effect was measured... with the method of Van der Pauw, which is suitable for arbitrarily shaped samples of homogeneous thickness. A fifth contact was added to compensate for the misalignment voltage."

Cautions: Evaluated Data
Digitized data were obtained from Figure 2 of the paper.
Thermoelectric Power for Bi:221; [Bi-Sr(La)-Cu-O]
x of Lax (formula units) Temperature (K) Thermoelectric Power (µV/K)
0.6 29 2.8
0.6 35 3.8
0.6 43 5.0
0.6 67 7.8
0.6 90 9.4
0.6 114 9.8
0.6 149 8.9
0.6 196 6.9
0.6 212 6.2
0.6 258 3.5
0.6 279 1.7
0.5 7 0.5
0.5 10 1.7
0.5 20 2.2
0.5 57 5.3
0.5 78 7.1
0.5 87 7.4
0.5 117 6.9
0.5 151 6.1
0.5 249 2.0
0.5 268 1.2
0.4 33 -0.9
0.4 52 -0.2
0.4 69 0.1
0.4 77 0.1
0.4 132 -1.2
0.4 149 -1.9
0.4 203 -4.0
0.4 258 -6.0
0.4 292 -7.2
0.0 8 -1.0
0.0 13 -1.2
0.0 19 -1.8
0.0 26 -2.2
0.0 60 -1.9
0.0 79 -1.9
0.0 96 -2.2
0.0 114 -2.6
0.0 167 -4.6
0.0 222 -6.5
0.0 239 -7.0
0.0 258 -7.5
0.0 269 -7.5
0.2 58 -3.9
0.2 77 -4.4
0.2 114 -5.6
0.2 152 -6.8
0.2 189 -7.8
0.2 247 -9.5
0.2 290 -10.7
0.1 21 -1.2
0.1 40 -2.9
0.1 69 -4.4
0.1 78 -4.9
0.1 102 -6.1
0.1 139 -7.4
0.1 178 -8.6
0.1 230 -10.1
0.1 261 -10.8
Measurement Method: Thermopower measurement
The authors cite A. Conan et al., Rev. de Phys. App., Vol. 6, 383 (1971), and summarize the procedure as follows. "For the thermopower measurements, a DC technique is used where the simultaneous measurement of two thermocouples has the advantage of not having to know the applied temperature difference accurately. A Au-0.03 at.% Fe and a Chromel thermocouple are used, mounted either directly on the sample with Indium or after a small patch of gold paste has been deposited first... The Au-0.03 at.% Fe thermopower is calibrated against YBa2Cu3O7-δ (for Tc=88 K) and against Pb (for T ≥54 K), and both calibrations agree in the region of overlap within 3%. ... Temperature differences of less than 1% were used, and linearity of the thermopower was checked between -ΔT and +ΔT, giving a total accuracy of about 5%."

Cautions: Evaluated Data
Digitized data were obtained from Figure 3 of the paper.