Material Specification for Y:123; [Y-Ba-Cu-O]
Process: Solid State Reaction
Notes: "The results for three polycrystalline samples are reported here. The first one... was Y-Ba-Cu-O prepared from high-purity Y2O3, BaCO3, and CuO. The mixture was sintered at 940 °C for three days with intermediate grindings, then pelletized and sintered in flowing oxygen at 940 °C for 20 h and cooled over 36 h to room temperature... Gd-Ba-Cu-O (was) prepared using the same method as for Y-Ba-Cu-O... A 2.3-mg single crystal of Bi-Sr-Ca-Cu-O was prepared by heating single-phase powder to 950 °C and slow cooling to room temperature."
Formula: YBa2Cu3O7
Informal Name: Y:123
Chemical Family: Y-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 Y:123; [Y-Ba-Cu-O]
| Critical Temperature (K) |
| 92.1 |
Measurement Method: SQUID magnetometer
The authors cite V.G. Kogan et al., Phys. Rev. B, Vol. 38, 11958 (1988), and summarize the procedure as follows. "One can find (the penetration depth) at various temperatures by measuring the slope of the straight lines M(lnH), provided that the anisotropy parameter γ is known and that H is large enough such that M is (nearly) reversible... M(H) data... were obtained using a Quantum Design superconducting quantum interference device magnetometer... The T
c values... are taken to be the onset values from Meissner effect measurements in a field of (5 mT = 50 G)..." For the single crystal sample, the magnetic field was applied parallel to the c-axis.
Cautions: Evaluated Data
Penetration Depth for Y:123; [Y-Ba-Cu-O]
| Temperature (K) |
Penetration Depth (σ) |
| 24.4 |
3060 |
| 40.3 |
3020 |
| 61.2 |
3660 |
| 80.8 |
5900 |
| 85.4 |
7320 |
| 88.1 |
9115 |
| 89.2 |
11600 |
| 89.3 |
14500 |
Measurement Method: SQUID magnetometer
The authors cite V.G. Kogan et al., Phys. Rev. B, Vol. 38, 11958 (1988), and summarize the procedure as follows. "One can find (the penetration depth) at various temperatures by measuring the slope of the straight lines M(lnH), provided that the anisotropy parameter γ is known and that H is large enough such that M is (nearly) reversible... M(H) data... were obtained using a Quantum Design superconducting quantum interference device magnetometer... The T
c values... are taken to be the onset values from Meissner effect measurements in a field of (5 mT = 50 G)..." For the single crystal sample, the magnetic field was applied parallel to the c-axis.
Cautions: Evaluated Data
Digitized data were obtained from Figure 2a of the paper.
Material Specification for Gd:123; [Gd-Ba-Cu-O]
Process: Solid State Reaction
Notes: "The results for three polycrystalline samples are reported here. The first one... was Y-Ba-Cu-O prepared from high-purity Y2O3, BaCO3, and CuO. The mixture was sintered at 940 °C for three days with intermediate grindings, then pelletized and sintered in flowing oxygen at 940 °C for 20 h and cooled over 36 h to room temperature... Gd-Ba-Cu-O (was) prepared using the same method as for Y-Ba-Cu-O... A 2.3-mg single crystal of Bi-Sr-Ca-Cu-O was prepared by heating single-phase powder to 950 °C and slow cooling to room temperature."
Formula: GdBa2Cu3O7
Informal Name: Gd:123
Chemical Family: Gd-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-Ba-Cu-O]
| Critical Temperature (K) |
| 92.2 |
Measurement Method: SQUID magnetometer
The authors cite V.G. Kogan et al., Phys. Rev. B, Vol. 38, 11958 (1988), and summarize the procedure as follows. "One can find (the penetration depth) at various temperatures by measuring the slope of the straight lines M(lnH), provided that the anisotropy parameter γ is known and that H is large enough such that M is (nearly) reversible... M(H) data... were obtained using a Quantum Design superconducting quantum interference device magnetometer... The T
c values... are taken to be the onset values from Meissner effect measurements in a field of (5 mT = 50 G)..." For the single crystal sample, the magnetic field was applied parallel to the c-axis.
Cautions: Evaluated Data
Penetration Depth for Gd:123; [Gd-Ba-Cu-O]
| Temperature (K) |
Penetration Depth (σ) |
| 24.4 |
2640 |
| 40.3 |
2600 |
| 61.3 |
3150 |
| 80.8 |
5090 |
| 85.5 |
6310 |
| 88.2 |
7860 |
| 89.3 |
10000 |
| 89.4 |
12500 |
Measurement Method: SQUID magnetometer
The authors cite V.G. Kogan et al., Phys. Rev. B, Vol. 38, 11958 (1988), and summarize the procedure as follows. "One can find (the penetration depth) at various temperatures by measuring the slope of the straight lines M(lnH), provided that the anisotropy parameter γ is known and that H is large enough such that M is (nearly) reversible... M(H) data... were obtained using a Quantum Design superconducting quantum interference device magnetometer... The T
c values... are taken to be the onset values from Meissner effect measurements in a field of (5 mT = 50 G)..." For the single crystal sample, the magnetic field was applied parallel to the c-axis.
Cautions: Evaluated Data
Digitized data were obtained from Figure 2a of the paper.
Material Specification for Bi:2212; [Bi-Sr-Ca-Cu-O]
Process: Solid State Reaction
Notes: "The results for three polycrystalline samples are reported here. The first one... was Y-Ba-Cu-O prepared from high-purity Y2O3, BaCO3, and CuO. The mixture was sintered at 940 °C for three days with intermediate grindings, then pelletized and sintered in flowing oxygen at 940 °C for 20 h and cooled over 36 h to room temperature... Gd-Ba-Cu-O (was) prepared using the same method as for Y-Ba-Cu-O... A 2.3-mg single crystal of Bi-Sr-Ca-Cu-O was prepared by heating single-phase powder to 950 °C and slow cooling to room temperature."
Formula: Bi2Sr2CaCu2O8
Informal Name: Bi:2212
Chemical Family: Bi-Sr-Ca-Cu-O
Chemical Class: Oxide
Structure Type: Single Crystal
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Critical Temperature for Bi:2212; [Bi-Sr-Ca-Cu-O]
| Critical Temperature (K) |
| 84.8 |
Measurement Method: SQUID magnetometer
The authors cite V.G. Kogan et al., Phys. Rev. B, Vol. 38, 11958 (1988), and summarize the procedure as follows. "One can find (the penetration depth) at various temperatures by measuring the slope of the straight lines M(lnH), provided that the anisotropy parameter γ is known and that H is large enough such that M is (nearly) reversible... M(H) data... were obtained using a Quantum Design superconducting quantum interference device magnetometer... The T
c values... are taken to be the onset values from Meissner effect measurements in a field of (5 mT = 50 G)..." For the single crystal sample, the magnetic field was applied parallel to the c-axis.
Cautions: Evaluated Data
Penetration Depth for Bi:2212; [Bi-Sr-Ca-Cu-O]
| Temperature (K) |
Penetration Depth (σ) |
| 22.4 |
3160 |
| 37.1 |
3120 |
| 56.3 |
3780 |
| 74.3 |
6100 |
| 77.3 |
6850 |
| 79.1 |
10000 |
| 83.1 |
16900 |
Measurement Method: SQUID magnetometer
The authors cite V.G. Kogan et al., Phys. Rev. B, Vol. 38, 11958 (1988), and summarize the procedure as follows. "One can find (the penetration depth) at various temperatures by measuring the slope of the straight lines M(lnH), provided that the anisotropy parameter γ is known and that H is large enough such that M is (nearly) reversible... M(H) data... were obtained using a Quantum Design superconducting quantum interference device magnetometer... The T
c values... are taken to be the onset values from Meissner effect measurements in a field of (5 mT = 50 G)..." For the single crystal sample, the magnetic field was applied parallel to the c-axis.
Cautions: Evaluated Data
Digitized data were obtained from Figure 2b of the paper.
