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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 YBa2(Cu0.98M0.02)3Oy(M=Fe,Co,Ni) Superconducting Thin Films
Author(s): L.W. Song, E. Narumi, F. Yang, H.M. Shao, D.T. Shaw, and Y.H. Kao
Publication: Physica C Volume: 174 Issue: Not Available Year: 1991 Page(s): 303-308
Editor(s): Not Available
Publisher: Elsevier Science Publishers B.V.
Language: English
Notes: Not Available
Keywords: Material Specification, Critical Temperature, Critical Current Density

Materials and Properties

Y:123; [Y-Ba-Cu(Fe)-O]
Y:123; [Y-Ba-Cu(Co)-O]
Y:123; [Y-Ba-Cu(Ni)-O]
Material Specification for Y:123; [Y-Ba-Cu(Fe)-O] Process: Laser Ablation
Notes: "Bulk specimens with Fe, Co and Ni substitutions were made as targets. Y2O3, BaCO3, CuO powders were thoroughly mixed together with the right portion of Fe2O3(CO3O4 or NiO) powders. The mixed powder was then calcined at 900 °C for 10 h in air. It was ground and pressed into pellets under (about 0.55 GPa = 5.5 kbar) and sintered at 950 °C for over 24 h in flowing oxygen. This procedure was repeated twice. Laser ablation (was used to make) superconducting thin films. Yttrium-stabilized ZrO2 single crystal was used as the substrate. Typical thickness of the films is 200 nm."
Formula: YBa2Cu2.94Fe0.06Ox
Informal Name: Y:123
Chemical Family: Y-Ba-Cu(Fe)-O
Chemical Class: Oxide
Structure Type:
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form: Thin Film

Critical Temperature for Y:123; [Y-Ba-Cu(Fe)-O]
Critical Temperature (K)
78 ± 3
Measurement Method: Microbridge I-V
"For transport critical current measurements, a microbridge of 20-100 µm wide and 100-500 µm long was inscribed by laser patterning... Tc was determined from R versus T measurement by using a 1 µV onset voltage criterion for R=0. Jc(H,T) was measured from I-V curves using 1 µV voltage drop across the microbridge to define Jc. The Hall coefficient was determined by averaging the apparent Hall voltage in two opposite magnetic field directions."

Cautions: Evaluated Data
Critical Current Density for Y:123; [Y-Ba-Cu(Fe)-O]
Field Direction () Magnetic Field (T) Critical Current Density (kA/cm2)
H//ab 0.4 4846
H//ab 1.0 4793
H//ab 1.5 4640
H//ab 2.0 4536
H//ab 2.5 4536
H//ab 3.0 4433
H//ab 3.5 4329
H//ab 4.0 4278
H//ab 4.5 4123
H//ab 5.0 4073
H//c 0.5 3939
H//c 1.0 3440
H//c 1.5 3064
H//c 2.0 2796
H//c 2.6 2527
H//c 3.0 2366
H//c 3.5 2204
H//c 4.0 2043
H//c 4.4 2043
H//c 4.9 1881
Measurement Method: Microbridge I-V
"For transport critical current measurements, a microbridge of 20-100 µm wide and 100-500 µm long was inscribed by laser patterning... Tc was determined from R versus T measurement by using a 1 µV onset voltage criterion for R=0. Jc(H,T) was measured from I-V curves using 1 µV voltage drop across the microbridge to define Jc. The Hall coefficient was determined by averaging the apparent Hall voltage in two opposite magnetic field directions."

Cautions: Evaluated Data
Relative values were digitized from the authors' Fig. 1 for a temperature of 5 K and were converted to absolute values using the authors' Table 1.
Material Specification for Y:123; [Y-Ba-Cu(Co)-O] Process: Laser Ablation
Notes: "Bulk specimens with Fe, Co and Ni substitutions were made as targets. Y2O3, BaCO3, CuO powders were thoroughly mixed together with the right portion of Fe2O3(CO3O4 or NiO) powders. The mixed powder was then calcined at 900 °C for 10 h in air. It was ground and pressed into pellets under (about 0.55 GPa = 5.5 kbar) and sintered at 950 °C for over 24 h in flowing oxygen. This procedure was repeated twice. Laser ablation (was used to make) superconducting thin films. Yttrium-stabilized ZrO2 single crystal was used as the substrate. Typical thickness of the films is 200 nm."
Formula: YBa2Cu2.94Co0.06Ox
Informal Name: Y:123
Chemical Family: Y-Ba-Cu(Co)-O
Chemical Class: Oxide
Structure Type:
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form: Thin Film

Critical Temperature for Y:123; [Y-Ba-Cu(Co)-O]
Critical Temperature (K)
80 ± 2
Measurement Method: Microbridge I-V
"For transport critical current measurements, a microbridge of 20-100 µm wide and 100-500 µm long was inscribed by laser patterning... Tc was determined from R versus T measurement by using a 1 µV onset voltage criterion for R=0. Jc(H,T) was measured from I-V curves using 1 µV voltage drop across the microbridge to define Jc. The Hall coefficient was determined by averaging the apparent Hall voltage in two opposite magnetic field directions."

Cautions: Evaluated Data
Critical Current Density for Y:123; [Y-Ba-Cu(Co)-O]
Field Direction () Magnetic Field (T) Critical Current Density (kA/cm2)
H//ab 0.2 4947
H//ab 1.0 4894
H//ab 1.5 4790
H//ab 2.0 4737
H//ab 3.0 4630
H//ab 4.0 4577
H//ab 5.0 4523
H//c 0.2 4784
H//c 0.4 4623
H//c 1.0 4140
H//c 1.5 3763
H//c 2.0 3387
H//c 3.0 3119
H//c 4.0 2796
H//c 5.0 2580
Measurement Method: Microbridge I-V
"For transport critical current measurements, a microbridge of 20-100 µm wide and 100-500 µm long was inscribed by laser patterning... Tc was determined from R versus T measurement by using a 1 µV onset voltage criterion for R=0. Jc(H,T) was measured from I-V curves using 1 µV voltage drop across the microbridge to define Jc. The Hall coefficient was determined by averaging the apparent Hall voltage in two opposite magnetic field directions."

Cautions: Evaluated Data
Relative values were digitized from the authors' Fig. 1 for a temperature of 5 K and were converted to absolute values using the authors' Table 1.
Material Specification for Y:123; [Y-Ba-Cu(Ni)-O] Process: Laser Ablation
Notes: "Bulk specimens with Fe, Co and Ni substitutions were made as targets. Y2O3, BaCO3, CuO powders were thoroughly mixed together with the right portion of Fe2O3(CO3O4 or NiO) powders. The mixed powder was then calcined at 900 °C for 10 h in air. It was ground and pressed into pellets under (about 0.55 GPa = 5.5 kbar) and sintered at 950 °C for over 24 h in flowing oxygen. This procedure was repeated twice. Laser ablation (was used to make) superconducting thin films. Yttrium-stabilized ZrO2 single crystal was used as the substrate. Typical thickness of the films is 200 nm."
Formula: YBa2Cu2.94Ni0.06Ox
Informal Name: Y:123
Chemical Family: Y-Ba-Cu(Ni)-O
Chemical Class: Oxide
Structure Type:
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form: Thin Film

Critical Temperature for Y:123; [Y-Ba-Cu(Ni)-O]
Critical Temperature (K)
76 ± 3
Measurement Method: Microbridge I-V
"For transport critical current measurements, a microbridge of 20-100 µm wide and 100-500 µm long was inscribed by laser patterning... Tc was determined from R versus T measurement by using a 1 µV onset voltage criterion for R=0. Jc(H,T) was measured from I-V curves using 1 µV voltage drop across the microbridge to define Jc. The Hall coefficient was determined by averaging the apparent Hall voltage in two opposite magnetic field directions."

Cautions: Evaluated Data
Critical Current Density for Y:123; [Y-Ba-Cu(Ni)-O]
Field Direction () Magnetic Field (T) Critical Current Density (kA/cm2)
H//ab 0.0 1000
H//ab 0.0 937
H//ab 0.2 927
H//ab 0.5 876
H//ab 1.0 804
H//ab 1.6 764
H//ab 2.0 734
H//ab 2.5 724
H//ab 3.0 725
H//ab 4.0 695
H//ab 5.0 677
H//c 0.0 1000
H//c 0.2 903
H//c 0.2 751
H//c 0.5 600
H//c 1.0 490
H//c 1.5 393
H//c 2.0 361
H//c 2.4 340
H//c 3.0 287
H//c 4.0 266
H//c 5.0 245
Measurement Method: Microbridge I-V
"For transport critical current measurements, a microbridge of 20-100 µm wide and 100-500 µm long was inscribed by laser patterning... Tc was determined from R versus T measurement by using a 1 µV onset voltage criterion for R=0. Jc(H,T) was measured from I-V curves using 1 µV voltage drop across the microbridge to define Jc. The Hall coefficient was determined by averaging the apparent Hall voltage in two opposite magnetic field directions."

Cautions: Evaluated Data
Relative values were digitized from the authors' Fig. 1 for a temperature of 5 K and were converted to absolute values using the authors' Table 1.