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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: Electronic States of Doped Holes and Magnetic Properties in La2-xMxCuO4 (M=Sr,Ba)
Author(s): M. Oda, T. Nakano, Y. Kamada, and M. Ido
Publication: Physica C Volume: 183 Issue: Not Available Year: 1991 Page(s): 234-240
Editor(s): Not Available
Publisher: Elsevier Science Publishers B.V.
Language: English
Notes: Not Available
Keywords: Material Specification, Critical Temperature, Resistivity (normal state), Magnetic Susceptibility

Materials and Properties

La:21; [La(Ba)-Cu-O]
La:21; [La(Sr)-Cu-O]
Material Specification for La:21; [La(Ba)-Cu-O] Process: Solid State Reaction
Notes: "The La2-xMxCuO4 (M=Sr, Ba) samples were prepared by firing the pellet of mixed La2O3-MCO3-CuO powders in flowing oxygen for 24 h. The firing was carried out at a high temperature within the T-range from 1050 to 1240 °C... After the firing, the pellets were colled to 600 °C in 6 h and held for 24 h, then slowly cooled to room temperature."
Formula: La2-xBaxCuO4
Informal Name: La:21
Chemical Family: La(Ba)-Cu-O
Chemical Class: Oxide
Structure Type:
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:

Critical Temperature for La:21; [La(Ba)-Cu-O]
x of Bax (formula units) Critical Temperature (K)
0.05 12
0.07 20
0.08 25
0.09 30
0.1 27
0.11 14
0.12 8
0.13 8
0.13 6
0.14 7
0.14 9
0.14 20
0.15 29
0.16 30
0.16 30
0.17 28
0.18 25
0.19 23
0.2 17
0.21 14
0.23 8
Measurement Method: SQUID magnetometer
"The magnetic susceptibility was measured by using a Quantum Design SQUID susceptometer... samples were cooled under a magnetic field of (4 A/m) down to 5 K or 2 K, and the diamagnetic signal was measured by heating the sample under the same field."

Cautions: Evaluated Data
Digitized data were obtained from Figure 6 of the paper.
Resistivity (normal state) for La:21; [La(Ba)-Cu-O]
x of Srx (formula units) Temperature (K) Resistivity (normal state) (mΩ·cm)
0.15 38.3 0.4
0.15 103.4 1.0
0.15 200.0 1.6
Measurement Method: Four-probe method
The resistivity was measured by the contentional four probe DC method. Electrical contacts were made with indium stuck on the surface of the sample."

Cautions: Evaluated Data
Material Specification for La:21; [La(Sr)-Cu-O] Process: Solid State Reaction
Notes: "The La2-xMxCuO4 (M=Sr, Ba) samples were prepared by firing the pellet of mixed La2O3-MCO3-CuO powders in flowing oxygen for 24 h. The firing was carried out at a high temperature within the T-range from 1050 to 1240 °C... After the firing, the pellets were colled to 600 °C in 6 h and held for 24 h, then slowly cooled to room temperature."
Formula: La2-xSrxCuO4
Informal Name: La:21
Chemical Family: La(Sr)-Cu-O
Chemical Class: Oxide
Structure Type:
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:

Critical Temperature for La:21; [La(Sr)-Cu-O]
x of Bax (formula units) Critical Temperature (K)
0.06 7
0.07 10
0.07 15
0.08 23
0.09 27
0.1 30
0.11 30
0.11 28
0.12 26
0.12 27
0.12 28
0.13 30
0.13 32
0.14 36
0.15 37
0.16 37
0.18 34
0.18 33
0.19 32
0.19 30
0.2 28
0.21 25
0.22 23
0.23 19
0.23 15
0.24 14
0.26 9
0.26 6
0.27 3
Measurement Method: SQUID magnetometer
"The magnetic susceptibility was measured by using a Quantum Design SQUID susceptometer... samples were cooled under a magnetic field of (4 A/m) down to 5 K or 2 K, and the diamagnetic signal was measured by heating the sample under the same field."

Cautions: Evaluated Data
Digitized data were obtained from Figure 6 of the paper.
Resistivity (normal state) for La:21; [La(Sr)-Cu-O]
x of Srx (formula units) Temperature (K) Resistivity (normal state) (mΩ·cm)
0.15 38.3 0.4
0.15 103.4 1.0
0.15 200.0 1.6
0.15 299.0 2.3
0.18 40.4 0.2
0.18 101.0 0.5
0.18 200.0 1.0
0.18 298.4 1.3
0.20 27.0 0.1
0.20 101.0 0.4
0.20 200.0 1.0
0.20 298.3 1.1
0.26 7.0 0.1
0.26 101.0 0.3
0.26 199.5 0.5
0.26 298.1 1.0
Measurement Method: Four-probe method
The resistivity was measured by the contentional four probe DC method. Electrical contacts were made with indium stuck on the surface of the sample."

Cautions: Evaluated Data
Digitized data were obtained from Figure 4 of the paper.
Magnetic Susceptibility for La:21; [La(Sr)-Cu-O]
x of Srx (formula units) Temperature (K) Magnetic Susceptibility (arbitrary)
.2 5.3 -0.9
.2 19.2 -0.9
.2 23.0 -0.8
.2 26.1 -0.3
.2 28.0 0.0
.2 29.2 0.0
.2 35.0 0.0
.2 40.0 0.0
.16 5.3 -0.8
.16 17.5 -0.8
.16 28.3 -0.7
.16 35.1 -0.5
.16 36.5 -0.2
.16 37.3 0.0
.16 39.1 0.0
.16 40.0 0.0
.18 5.0 -0.9
.18 16.0 -0.9
.18 26.5 -0.8
.18 30.0 -0.6
.18 32.0 -0.3
.18 34.0 0.0
.18 36.4 0.0
.18 40.0 0.0
.22 5.3 -0.8
.22 15.0 -0.7
.22 20.0 -0.5
.22 22.1 -0.1
.22 24.0 0.0
.22 30.0 0.0
.22 40.0 0.0
.24 5.3 -0.7
.24 10.0 -0.6
.24 12.3 -0.3
.24 14.0 0.0
.24 15.5 0.0
.24 20.0 0.0
.24 31.0 0.0
.24 40.0 0.0
.26 1.7 -0.6
.26 5.2 -0.3
.26 6.0 -0.1
.26 10.1 0.0
.26 20.0 0.0
.26 30.1 0.0
.26 40.0 0.0
Measurement Method: SQUID magnetometer
"The magnetic susceptibility was measured by using a Quantum Design SQUID susceptometer... samples were cooled under a magnetic field of (4 A/m) down to 5 K or 2 K, and the diamagnetic signal was measured by heating the sample under the same field."

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