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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: Magnetic and Superconducting Behaviour of the Oxides, Pr1-xGdxBa2Cu3Oy
Author(s): I. Das, E.V. Sampathkumaran, R. Vijayaraghavan, Y. Nakazawa, and M. Ishikawa
Publication: Physica C Volume: 173 Issue: Not Available Year: 1991 Page(s): 331-336
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, Specific Heat

Materials and Properties

Gd:123; [Gd(Pr)-Ba-Cu-O]
Material Specification for Gd:123; [Gd(Pr)-Ba-Cu-O] Process: Solid State Reaction
Notes: The authors cite A. Kevede et al., Phys. Rev. B, Vol. 40, 4453 (1989), and summarize the procedure as follows. "The samples... were prepared... by a conventional solid-state reaction technique. Stoichiometric amounts of high purity compounds, BaCO3, Y2O3, Pr6O11 and CuO were thoroughly mixed and pelletised. The samples were calcined several times. For x ≥ 0.5, the calcination temperature was 950 °C and for x < 0.5, it was 900 °C... Final heat treatment was given in a flowing oxygen atmosphere at the respective calcination temperatures and the pellets were allowed to stay at 500 °C for 12 h while cooling."
Formula: GdxPr1-xBa2Cu3Oy
Informal Name: Gd:123
Chemical Family: Gd(Pr)-Ba-Cu-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Critical Temperature for Gd:123; [Gd(Pr)-Ba-Cu-O]
x in Gdx (formula units) Critical Temperature (K)
1.0 89
0.9 80
0.8 60
0.7 40
0.6 23
0.5 3
Measurement Method: Ac susceptibility
"... AC susceptibility... measurements were performed in the temperature interval 12-300 K employing a closed cycle refrigerator..." No additional measurement details were noted.

Cautions: Unevaluated Data
Digitized data were obtained from Figure 2 of the paper.
Resistivity (normal state) for Gd:123; [Gd(Pr)-Ba-Cu-O]
x in Gdx (formula units) Temperature (K) Resistivity (normal state) (mΩ·cm)
0.5 16 2.4
0.5 12 2.5
0.5 13 2.5
0.5 16 2.5
0.5 18 2.5
0.5 21 2.4
0.5 29 2.1
0.5 38 1.9
0.5 60 1.7
0.5 96 1.5
0.5 163 1.6
0.5 206 1.7
0.5 240 1.7
0.5 272 1.8
0.5 292 1.8
0.6 14 0.0
0.6 19 0.0
0.6 26 0.0
0.6 27 0.0
0.6 32 0.3
0.6 39 1.0
0.6 50 1.0
0.6 98 1.0
0.6 132 1.2
0.6 159 1.3
0.6 181 1.4
0.6 216 1.5
0.6 241 1.5
0.6 267 1.6
0.6 292 1.6
0.7 30 0.0
0.7 36 0.0
0.7 43 0.0
0.7 46 0.0
0.7 47 0.2
0.7 48 0.5
0.7 52 0.6
0.7 76 0.7
0.7 113 0.8
0.7 153 1.0
0.7 181 1.1
0.7 218 1.2
0.7 265 1.3
0.7 292 1.4
0.8 61 0.0
0.8 66 0.1
0.8 67 0.3
0.8 70 0.5
0.8 93 0.6
0.8 128 0.7
0.8 184 0.9
0.8 233 1.0
0.8 269 1.2
0.8 292 1.2
0.9 78 0.0
0.9 82 0.0
0.9 86 0.0
0.9 86 0.1
0.9 87 0.3
0.9 110 0.5
0.9 141 0.5
0.9 175 0.6
0.9 207 0.7
0.9 239 0.8
0.9 272 0.9
0.9 295 0.9
1.0 91 0.0
1.0 93 0.0
1.0 93 0.2
1.0 123 0.3
1.0 169 0.4
1.0 202 0.5
1.0 236 0.5
1.0 268 0.6
1.0 295 0.7
Measurement Method: Electrical resistance
"Resistivity... measurements were performed in the temperature interval 12-300 K employing a closed cycle refrigerator..." No additional measurement details were noted.

Cautions: Unevaluated Data
Digitized data were obtained from Figure 1 of the paper.
Magnetic Susceptibility for Gd:123; [Gd(Pr)-Ba-Cu-O]
x in Gdx (formula units) Temperature (K) Magnetic Susceptibility (arbitrary)
0.6 13 -1.0
0.6 19 -1.0
0.6 23 -0.9
0.6 25 -0.7
0.6 26 -0.4
0.6 46 -0.4
0.6 63 -0.4
0.6 82 -0.4
0.6 99 -0.4
0.7 29 -1.0
0.7 35 -1.0
0.7 40 -0.9
0.7 43 -0.9
0.7 44 -0.8
0.7 45 -0.5
0.7 46 -0.2
0.7 63 -0.2
0.7 82 -0.2
0.7 99 -0.2
0.8 41 -1.0
0.8 50 -0.9
0.8 58 -0.9
0.8 61 -0.8
0.8 63 -0.5
0.8 63 -0.3
0.8 82 -0.1
0.8 90 -0.1
0.8 100 -0.1
0.9 42 -1.0
0.9 52 -0.9
0.9 65 -0.9
0.9 77 -0.9
0.9 80 -0.8
0.9 81 -0.5
0.9 82 -0.1
0.9 94 -0.1
0.9 99 -0.1
1.0 62 -0.9
1.0 71 -0.9
1.0 82 -0.9
1.0 87 -0.8
1.0 88 -0.6
1.0 89 -0.4
1.0 89 -0.2
1.0 90 0.0
1.0 100 0.0
Measurement Method: Ac susceptibility
"... AC susceptibility... measurements were performed in the temperature interval 12-300 K employing a closed cycle refrigerator..." No additional measurement details were noted.

Cautions: Unevaluated Data
Digitized data were obtained from Figure 2 of the paper.
Specific Heat for Gd:123; [Gd(Pr)-Ba-Cu-O]
x in Gdx (formula units) Temperature (K) Specific Heat (J kg-1 K-1)
0.1 0.4 1.0
0.1 0.6 1.4
0.1 1.6 0.8
0.1 2.8 0.9
0.1 4.7 1.8
0.1 6.7 3.4
0.1 9.7 5.8
0.1 10.6 6.8
0.1 11.7 7.2
0.1 12.8 7.0
0.1 14.1 7.1
0.1 17.7 11.1
0.1 19.4 13.8
0.2 0.5 1.1
0.2 0.5 2.3
0.2 0.6 4.4
0.2 1.0 5.7
0.2 1.7 3.6
0.2 2.5 2.4
0.2 3.4 2.1
0.2 4.5 2.4
0.2 5.5 2.6
0.2 7.7 3.3
0.2 10.1 3.9
0.2 12.3 4.7
0.2 14.8 6.3
0.2 16.3 7.5
0.2 18.7 10.1
0.2 19.7 11.6
0.4 0.5 0.7
0.4 0.6 1.8
0.4 0.7 2.2
0.4 2.1 1.2
0.4 3.1 1.2
0.4 4.1 1.6
0.4 5.0 2.1
0.4 8.0 4.6
0.4 10.1 5.9
0.4 12.0 5.4
0.4 15.1 7.2
0.4 17.4 9.4
0.4 19.6 12.1
0.7 0.5 4.4
0.7 0.7 7.2
0.7 1.0 10.2
0.7 1.1 12.4
0.7 1.2 13.6
0.7 1.4 15.1
0.7 1.8 10.9
0.7 2.2 6.6
0.7 3.7 2.8
0.7 4.3 2.4
0.7 5.9 2.1
0.7 9.1 2.3
0.7 12.4 3.3
0.7 15.8 5.3
0.7 18.4 8.1
0.7 19.9 10.1
Measurement Method: Adiabatic heat pulse
"Specific heat... measurements were performed... by an adiabatic heat pulse method."

Cautions: Unevaluated Data
No measurement details were noted. Digitized data were obtained from Figure 3 of the paper.