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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: Influence of Fe, Co, Ni and Zn Substitution on Critical Temperature and Structural Change of GdBa2Cu3O7
Author(s): H. Shimizu, T. Kiyama, and J. Arai
Publication: Physica C Volume: 196 Issue: Not Available Year: 1992 Page(s): 329-334
Editor(s): Not Available
Publisher: Elsevier Science Publishers B.V.
Language: English
Notes: Not Available
Keywords: Material Specification, Crystallography, Critical Temperature

Materials and Properties

Gd:123; [Gd-Ba-Cu(Fe)-O]
Gd:123; [Gd-Ba-Cu(Co)-O]
Gd:123; [Gd-Ba-Cu(Ni)-O]
Gd:123; [Gd-Ba-Cu(Zn)-O]
Y:123; [Y-Ba-Cu(Fe)-O]
Y:123; [Y-Ba-Cu(Ni)-O]
Y:123; [Y-Ba-Cu(Zn)-O]
Material Specification for Gd:123; [Gd-Ba-Cu(Fe)-O] Process: Solid State Reaction
Notes: "Samples... were prepared by solid-state reaction in the mixed powder of Y2O3, Gd2O3, CuO, NiO, ZnO, CoO and Fe2O3 with a purity of 99.99%. The starting materials were thoroughly mixed by a ball-mill and the mixed powder was sintered at 930 °C for 45 h in oxygen flow with two intermediate pulverizations. The reacted products were then ground into powder with a diameter below 45 µm, which was pressed into a pellet with a pressure of about 2 t/cm2. The pellets were sintered at 930 °C for 12 h in oxygen flow, and slowly cooled to room temperature in a furnace. Finally they were annealed at 350 °C for 12 h in oxygen flow..."
Formula: GdBa2Cu3-xFexOy
Informal Name: Gd:123
Chemical Family: Gd-Ba-Cu(Fe)-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:

Crystallography for Gd:123; [Gd-Ba-Cu(Fe)-O]
Crystal System:
Formula Units per Cell:
Space Group:
Cell Parameters
x (formula units) y of Oy (formula units) Temp K a Å b Å c Å
0.00 6.85 296 3.896 3.848 11.701
0.03 6.86 296 3.894 3.850 11.703
0.06 6.87 296 3.879 -- 11.699
0.09 6.90 296 3.881 -- 11.707
0.12 6.92 296 3.881 -- 11.703
0.15 6.93 296 3.878 -- 11.702
0.18 6.95 296 3.878 -- 11.706
0.24 6.99 296 3.884 -- 11.702
0.30 7.01 296 3.885 -- 11.691
0.39 7.08 296 3.887 -- 11.686
0.48 7.12 296 3.894 -- 11.684
0.57 7.18 296 3.894 -- 11.672
Measurement Method: X-ray diffraction
"The lattice parameters were determined by X-ray diffraction method using powder samples made from the pellet." No additional measurement details were noted.

Cautions: Evaluated Data
Digitized data were obtained from Figure 2 of the paper.
Critical Temperature for Gd:123; [Gd-Ba-Cu(Fe)-O]
x (formula units) y of Oy (formula units) Critical Temperature (K)
0.00 6.85 94
0.03 6.86 90
0.06 6.87 79
0.09 6.90 74
0.12 6.92 63
0.15 6.93 60
0.18 6.95 55
0.24 6.99 43
0.30 7.01 27
Measurement Method: Four-probe method
"The critical temperature Tc, which means the midpoint of the resistive transition, was determined by electrical resistivity measurements above 4.2 K using an ordinary four probe method for the rectangular sample cut out from the pellet." No additional measurement details were noted.

Cautions: Evaluated Data
Digitized data were obtained from Figure 1 of the paper.
Material Specification for Gd:123; [Gd-Ba-Cu(Co)-O] Process: Solid State Reaction
Notes: "Samples... were prepared by solid-state reaction in the mixed powder of Y2O3, Gd2O3, CuO, NiO, ZnO, CoO and Fe2O3 with a purity of 99.99%. The starting materials were thoroughly mixed by a ball-mill and the mixed powder was sintered at 930 °C for 45 h in oxygen flow with two intermediate pulverizations. The reacted products were then ground into powder with a diameter below 45 µm, which was pressed into a pellet with a pressure of about 2 t/cm2. The pellets were sintered at 930 °C for 12 h in oxygen flow, and slowly cooled to room temperature in a furnace. Finally they were annealed at 350 °C for 12 h in oxygen flow..."
Formula: GdBa2Cu3-xCoxOy
Informal Name: Gd:123
Chemical Family: Gd-Ba-Cu(Co)-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:

Crystallography for Gd:123; [Gd-Ba-Cu(Co)-O]
Crystal System:
Formula Units per Cell:
Space Group:
Cell Parameters
x (formula units) y of Oy (formula units) Temp K a Å b Å c Å
0.00 6.65 296 3.894 3.844 11.696
0.03 6.88 296 3.877 -- 11.690
0.06 6.86 296 3.873 -- 11.695
0.09 6.88 296 3.877 -- 11.697
0.12 6.89 296 3.882 -- 11.687
0.15 6.90 296 3.882 -- 11.686
0.24 6.95 296 3.885 -- 11.677
0.30 6.96 296 3.889 -- 11.677
0.39 6.98 296 3.897 -- 11.674
0.48 6.99 296 3.898 -- 11.667
0.57 7.05 296 3.903 -- 11.670
Measurement Method: X-ray diffraction
"The lattice parameters were determined by X-ray diffraction method using powder samples made from the pellet." No additional measurement details were noted.

Cautions: Evaluated Data
Digitized data were obtained from Figure 4 of the paper.
Critical Temperature for Gd:123; [Gd-Ba-Cu(Co)-O]
x (formula units) y of Oy (formula units) Critical Temperature (K)
0.00 6.85 93
0.03 6.88 88
0.06 6.86 86
0.09 6.88 71
0.12 6.89 57
0.15 6.90 55
0.24 6.95 34
Measurement Method: Four-probe method
"The critical temperature Tc, which means the midpoint of the resistive transition, was determined by electrical resistivity measurements above 4.2 K using an ordinary four probe method for the rectangular sample cut out from the pellet." No additional measurement details were noted.

Cautions: Evaluated Data
Digitized data were obtained from Figure 3 of the paper.
Material Specification for Gd:123; [Gd-Ba-Cu(Ni)-O] Process: Solid State Reaction
Notes: "Samples... were prepared by solid-state reaction in the mixed powder of Y2O3, Gd2O3, CuO, NiO, ZnO, CoO and Fe2O3 with a purity of 99.99%. The starting materials were thoroughly mixed by a ball-mill and the mixed powder was sintered at 930 °C for 45 h in oxygen flow with two intermediate pulverizations. The reacted products were then ground into powder with a diameter below 45 µm, which was pressed into a pellet with a pressure of about 2 t/cm2. The pellets were sintered at 930 °C for 12 h in oxygen flow, and slowly cooled to room temperature in a furnace. Finally they were annealed at 350 °C for 12 h in oxygen flow..."
Formula: GdBa2Cu3-xNixOy
Informal Name: Gd:123
Chemical Family: Gd-Ba-Cu(Ni)-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:

Crystallography for Gd:123; [Gd-Ba-Cu(Ni)-O]
Crystal System:
Formula Units per Cell:
Space Group:
Cell Parameters
x (formula units) y of Oy (formula units) Temp K a Å b Å c Å
0.00 6.84 296 3.894 3.848 11.698
0.03 6.85 296 3.898 3.848 11.690
0.06 6.85 296 3.898 3.848 11.694
0.09 6.84 296 3.902 3.848 11.692
0.12 6.86 296 3.899 3.848 11.694
0.15 6.86 296 3.893 3.849 11.686
0.18 6.87 296 3.893 3.851 11.686
0.24 6.86 296 3.893 3.863 11.669
0.30 6.87 296 3.892 3.869 11.653
0.39 6.90 296 3.881 -- 11.638
0.48 6.92 296 3.881 -- 11.628
0.57 6.97 296 3.882 -- 11.624
Measurement Method: X-ray diffraction
"The lattice parameters were determined by X-ray diffraction method using powder samples made from the pellet." No additional measurement details were noted.

Cautions: Evaluated Data
Digitized data were obtained from Figure 8 of the paper.
Critical Temperature for Gd:123; [Gd-Ba-Cu(Ni)-O]
x (formula units) y of Oy (formula units) Critical Temperature (K)
0.00 6.84 93
0.03 6.85 92
0.06 6.85 86
0.09 6.84 81
0.12 6.86 76
0.15 6.86 70
0.18 6.87 66
0.24 6.86 51
0.30 6.87 35
Measurement Method: Four-probe method
"The critical temperature Tc, which means the midpoint of the resistive transition, was determined by electrical resistivity measurements above 4.2 K using an ordinary four probe method for the rectangular sample cut out from the pellet." No additional measurement details were noted.

Cautions: Evaluated Data
Digitized data were obtained from Figure 7 of the paper.
Material Specification for Gd:123; [Gd-Ba-Cu(Zn)-O] Process: Solid State Reaction
Notes: "Samples... were prepared by solid-state reaction in the mixed powder of Y2O3, Gd2O3, CuO, NiO, ZnO, CoO and Fe2O3 with a purity of 99.99%. The starting materials were thoroughly mixed by a ball-mill and the mixed powder was sintered at 930 °C for 45 h in oxygen flow with two intermediate pulverizations. The reacted products were then ground into powder with a diameter below 45 µm, which was pressed into a pellet with a pressure of about 2 t/cm2. The pellets were sintered at 930 °C for 12 h in oxygen flow, and slowly cooled to room temperature in a furnace. Finally they were annealed at 350 °C for 12 h in oxygen flow..."
Formula: GdBa2Cu3-xZnxOy
Informal Name: Gd:123
Chemical Family: Gd-Ba-Cu(Zn)-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:

Crystallography for Gd:123; [Gd-Ba-Cu(Zn)-O]
Crystal System:
Formula Units per Cell:
Space Group:
Cell Parameters
x (formula units) y of Oy (formula units) Temp K a Å b Å c Å
0.00 6.87 296 3.900 3.847 11.702
0.03 6.87 296 3.904 3.842 11.706
0.06 6.89 296 3.904 3.842 11.708
0.12 6.88 296 3.904 3.846 11.710
0.15 6.88 296 3.906 3.848 11.710
0.18 6.86 296 3.909 3.850 11.702
0.21 6.87 296 3.909 3.852 11.698
0.24 6.86 296 3.911 3.854 11.692
0.30 6.84 296 3.911 3.859 11.690
0.39 6.85 296 3.889 -- 11.680
0.48 6.86 296 3.891 -- 11.676
Measurement Method: X-ray diffraction
"The lattice parameters were determined by X-ray diffraction method using powder samples made from the pellet." No additional measurement details were noted.

Cautions: Evaluated Data
Digitized data were obtained from Figure 6 of the paper.
Critical Temperature for Gd:123; [Gd-Ba-Cu(Zn)-O]
x (formula units) y of Oy (formula units) Critical Temperature (K)
0.00 6.87 94
0.03 6.87 81
0.06 6.89 68
0.09 6.87 55
0.12 6.88 52
0.15 6.88 46
0.21 6.87 35
0.24 6.86 13
Measurement Method: Four-probe method
"The critical temperature Tc, which means the midpoint of the resistive transition, was determined by electrical resistivity measurements above 4.2 K using an ordinary four probe method for the rectangular sample cut out from the pellet." No additional measurement details were noted.

Cautions: Evaluated Data
Digitized data were obtained from Figure 5 of the paper.
Material Specification for Y:123; [Y-Ba-Cu(Fe)-O] Process: Solid State Reaction
Notes: "Samples... were prepared by solid-state reaction in the mixed powder of Y2O3, Gd2O3, CuO, NiO, ZnO, CoO and Fe2O3 with a purity of 99.99%. The starting materials were thoroughly mixed by a ball-mill and the mixed powder was sintered at 930 °C for 45 h in oxygen flow with two intermediate pulverizations. The reacted products were then ground into powder with a diameter below 45 µm, which was pressed into a pellet with a pressure of about 2 t/cm2. The pellets were sintered at 930 °C for 12 h in oxygen flow, and slowly cooled to room temperature in a furnace. Finally they were annealed at 350 °C for 12 h in oxygen flow..."
Formula: YBa2Cu3-xFexOy
Informal Name: Y:123
Chemical Family: Y-Ba-Cu(Fe)-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:

Crystallography for Y:123; [Y-Ba-Cu(Fe)-O]
Crystal System:
Formula Units per Cell:
Space Group:
Cell Parameters
x (formula units) y of Oy (formula units) Temp K a Å b Å c Å
0.00 6.87 296 3.884 3.824 11.681
0.03 6.86 296 3.879 3.830 11.680
0.06 6.89 296 3.890 3.846 11.684
0.09 6.92 296 3.869 3.858 11.685
0.12 6.93 296 3.865 -- 11.678
0.18 6.94 296 3.867 -- 11.678
0.24 6.98 296 3.872 -- 11.678
0.30 7.02 296 3.876 -- 11.666
0.39 7.07 296 3.876 -- 11.659
0.48 7.11 296 3.880 -- 11.643
0.57 7.16 296 3.882 -- 11.641
Measurement Method: X-ray diffraction
"The lattice parameters were determined by X-ray diffraction method using powder samples made from the pellet." No additional measurement details were noted.

Cautions: Evaluated Data
Digitized data were obtained from Figure 2 of the paper.
Critical Temperature for Y:123; [Y-Ba-Cu(Fe)-O]
x (formula units) y of Oy (formula units) Critical Temperature (K)
0.00 6.87 96
0.03 6.86 93
0.06 6.89 90
0.09 6.92 82
0.12 6.93 75
0.15 6.93 67
0.18 6.94 63
0.24 6.98 49
0.3 7.02 32
Measurement Method: Four-probe method
"The critical temperature Tc, which means the midpoint of the resistive transition, was determined by electrical resistivity measurements above 4.2 K using an ordinary four probe method for the rectangular sample cut out from the pellet." No additional measurement details were noted.

Cautions: Evaluated Data
Digitized data were obtained from Figure 1 of the paper.
Material Specification for Y:123; [Y-Ba-Cu(Ni)-O] Process: Solid State Reaction
Notes: "Samples... were prepared by solid-state reaction in the mixed powder of Y2O3, Gd2O3, CuO, NiO, ZnO, CoO and Fe2O3 with a purity of 99.99%. The starting materials were thoroughly mixed by a ball-mill and the mixed powder was sintered at 930 °C for 45 h in oxygen flow with two intermediate pulverizations. The reacted products were then ground into powder with a diameter below 45 µm, which was pressed into a pellet with a pressure of about 2 t/cm2. The pellets were sintered at 930 °C for 12 h in oxygen flow, and slowly cooled to room temperature in a furnace. Finally they were annealed at 350 °C for 12 h in oxygen flow..."
Formula: YBa2Cu3-xNixOy
Informal Name: Y:123
Chemical Family: Y-Ba-Cu(Ni)-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:

Crystallography for Y:123; [Y-Ba-Cu(Ni)-O]
Crystal System:
Formula Units per Cell:
Space Group:
Cell Parameters
x (formula units) y of Oy (formula units) Temp K a Å b Å c Å
0.00 6.88 296 3.879 3.824 11.679
0.03 6.91 296 3.880 3.822 11.681
0.06 6.89 296 3.882 3.822 11.673
0.09 6.89 296 3.886 3.824 11.665
0.12 6.89 296 3.878 3.824 11.665
0.15 6.89 296 3.878 3.826 11.652
0.18 6.89 296 3.884 3.826 11.652
0.24 6.89 296 3.882 3.827 11.646
0.30 6.89 296 3.888 3.829 11.640
0.39 6.90 296 3.886 3.830 11.642
0.48 6.89 296 3.891 3.833 11.636
0.57 3.87 296 3.891 3.831 11.638
Measurement Method: X-ray diffraction
"The lattice parameters were determined by X-ray diffraction method using powder samples made from the pellet." No additional measurement details were noted.

Cautions: Evaluated Data
Digitized data were obtained from Figures 8 and 9 of the paper.
Critical Temperature for Y:123; [Y-Ba-Cu(Ni)-O]
x (formula units) y of Oy (formula units) Critical Temperature (K)
0.00 6.88 95
0.03 6.91 90
0.06 6.89 86
0.09 6.89 82
0.12 6.89 79
0.15 6.89 78
0.18 6.89 76
0.24 6.89 71
0.30 6.89 66
0.39 6.90 61
0.48 6.89 59
Measurement Method: Four-probe method
"The critical temperature Tc, which means the midpoint of the resistive transition, was determined by electrical resistivity measurements above 4.2 K using an ordinary four probe method for the rectangular sample cut out from the pellet." No additional measurement details were noted.

Cautions: Evaluated Data
Digitized data were obtained from Figure 7 and 9 of the paper.
Material Specification for Y:123; [Y-Ba-Cu(Zn)-O] Process: Solid State Reaction
Notes: "Samples... were prepared by solid-state reaction in the mixed powder of Y2O3, Gd2O3, CuO, NiO, ZnO, CoO and Fe2O3 with a purity of 99.99%. The starting materials were thoroughly mixed by a ball-mill and the mixed powder was sintered at 930 °C for 45 h in oxygen flow with two intermediate pulverizations. The reacted products were then ground into powder with a diameter below 45 µm, which was pressed into a pellet with a pressure of about 2 t/cm2. The pellets were sintered at 930 °C for 12 h in oxygen flow, and slowly cooled to room temperature in a furnace. Finally they were annealed at 350 °C for 12 h in oxygen flow..."
Formula: YBa2Cu3-xZnxOy
Informal Name: Y:123
Chemical Family: Y-Ba-Cu(Zn)-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:

Crystallography for Y:123; [Y-Ba-Cu(Zn)-O]
Crystal System:
Formula Units per Cell:
Space Group:
Cell Parameters
x (formula units) y of Oy (formula units) Temp K a Å b Å c Å
0.00 6.93 296 3.888 3.826 11.683
0.03 6.90 296 3.886 3.826 11.685
0.06 6.91 296 3.887 3.824 11.685
0.09 6.92 296 3.887 3.826 11.685
0.12 6.90 296 3.889 3.828 11.689
0.15 6.90 296 3.887 3.827 11.680
0.18 6.90 296 3.891 3.829 11.680
0.21 6.89 296 3.891 3.829 11.676
0.24 6.89 296 3.890 3.831 11.676
0.30 6.87 296 3.896 3.833 11.676
0.39 6.85 296 3.894 3.834 11.675
0.48 6.82 296 3.897 3.832 11.664
0.57 6.80 296 3.900 3.831 11.664
Measurement Method: X-ray diffraction
"The lattice parameters were determined by X-ray diffraction method using powder samples made from the pellet." No additional measurement details were noted.

Cautions: Evaluated Data
Digitized data were obtained from Figure 6 of the paper.
Critical Temperature for Y:123; [Y-Ba-Cu(Zn)-O]
x (formula units) y of Oy (formula units) Critical Temperature (K)
0.00 6.93 94
0.03 6.90 81
0.06 6.91 68
0.09 6.92 55
0.12 6.90 53
0.15 6.90 46
0.18 6.90 34
0.21 6.89 26
0.24 6.89 13
Measurement Method: Four-probe method
"The critical temperature Tc, which means the midpoint of the resistive transition, was determined by electrical resistivity measurements above 4.2 K using an ordinary four probe method for the rectangular sample cut out from the pellet." No additional measurement details were noted.

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