Material Specification for Tl:221; [Tl-Ba-Cu-O]
Process: Solid State Reaction
Notes: The authors cite Y. Kubo et al., Phys. Rev. B, Vol. 25, 5553 (1992), and summarize the procedure as follows. "Synthesized samples were...prepared by solid state reactions... the superconducting samples were annealed at 550 °C for 5 h in an argon atmosphere."
Formula: Tl2Ba2CuO6+x
Informal Name: Tl:221
Chemical Family: Tl-Ba-Cu-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Crystallography for Tl:221; [Tl-Ba-Cu-O]
| Crystal System: | Tetragonal |
| Formula Units per Cell: | |
| Space Group: |
|
Cell Parameters
|
Temp
K
|
a
Å
|
b
Å
|
c
Å
|
| 50 |
3.857 |
-- |
23.149 |
| 100 |
3.858 |
-- |
23.152 |
| 150 |
3.858 |
-- |
23.160 |
| 200 |
3.860 |
-- |
23.176 |
| 250 |
3.862 |
-- |
23.186 |
| 300 |
3.864 |
-- |
23.199 |
Measurement Method: X-ray diffraction
"The low-temperature crystal structures were examined by powder X-ray diffraction using low-temperature equipment with a refrigerator." No additional measurement details were noted.
Cautions: Evaluated Data
Digitized data were obtained from Figure 6 of the paper.
Critical Temperature for Tl:221; [Tl-Ba-Cu-O]
| Critical Temperature (K) |
| 78 |
Measurement Method: SQUID magnetometer
"Superconducting properties were measured using a SQUID magnetometer under a magnetic field of (796 A/m = 10 Oe)."
Cautions: Evaluated Data
Magnetic Susceptibility for Tl:221; [Tl-Ba-Cu-O]
| Temperature (K) |
Magnetic Susceptibility (arbitrary) |
| 5 |
-3.85 |
| 21 |
-3.82 |
| 45 |
-3.59 |
| 61 |
-3.10 |
| 71 |
-1.88 |
| 74 |
-0.60 |
| 77 |
-0.09 |
| 80 |
0.00 |
Measurement Method: SQUID magnetometer
"Superconducting properties were measured using a SQUID magnetometer under a magnetic field of (796 A/m = 10 Oe)."
Cautions: Evaluated Data
Digitized data were obtained from Figure 5 of the paper.
Material Specification for Tl:221; [Tl-Ba-Cu-O]
Process: Solid State Reaction
Notes: The authors cite Y. Kubo et al., Phys. Rev. B, Vol. 25, 5553 (1992), and summarize the procedure as follows. "Synthesized samples were...prepared by solid state reactions... the superconducting samples were annealed at 550 °C for 5 h in an argon atmosphere."
Formula: Tl2Ba2CuO6+x
Informal Name: Tl:221
Chemical Family: Tl-Ba-Cu-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Crystallography for Tl:221; [Tl-Ba-Cu-O]
| Crystal System: | Orthorhombic |
| Formula Units per Cell: | |
| Space Group: |
|
Cell Parameters
|
Temp
K
|
a
Å
|
b
Å
|
c
Å
|
| 50 |
5.476 |
5.454 |
23.159 |
| 100 |
5.478 |
5.455 |
23.165 |
| 150 |
5.480 |
5.456 |
23.175 |
| 200 |
5.483 |
5.457 |
23.188 |
| 250 |
5.486 |
5.458 |
23.196 |
| 300 |
5.489 |
4.460 |
23.211 |
Measurement Method: X-ray diffraction
"The low-temperature crystal structures were examined by powder X-ray diffraction using low-temperature equipment with a refrigerator." No additional measurement details were noted.
Cautions: Evaluated Data
Digitized data were obtained from Figure 7 of the paper.
Critical Temperature for Tl:221; [Tl-Ba-Cu-O]
| Critical Temperature (K) |
| 83 |
Measurement Method: SQUID magnetometer
"Superconducting properties were measured using a SQUID magnetometer under a magnetic field of (796 A/m = 10 Oe)."
Cautions: Evaluated Data
Magnetic Susceptibility for Tl:221; [Tl-Ba-Cu-O]
| Temperature (K) |
Magnetic Susceptibility (arbitrary) |
| 4 |
-3.39 |
| 20 |
-3.34 |
| 39 |
-3.10 |
| 60 |
-2.86 |
| 79 |
-1.74 |
| 84 |
-0.46 |
| 85 |
-0.05 |
| 86 |
0.00 |
Measurement Method: SQUID magnetometer
"Superconducting properties were measured using a SQUID magnetometer under a magnetic field of (796 A/m = 10 Oe)."
Cautions: Evaluated Data
Digitized data were obtained from Figure 5 of the paper.
Material Specification for Tl:1212; [Tl-Sr-Ca-Cu-O]
Process: Solid State Reaction
Notes: The authors cite Y. Kubo et al., Phys. Rev. B, Vol. 25, 5553 (1992), and summarize the procedure as follows. "Synthesized samples were...prepared by solid state reactions... the superconducting samples were annealed at 550 °C for 5 h in an argon atmosphere."
Formula: TlSr2CaCu2O7-x
Informal Name: Tl:1212
Chemical Family: Tl-Sr-Ca-Cu-O
Chemical Class: Oxide
Structure Type: Polycrystalline
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Crystallography for Tl:1212; [Tl-Sr-Ca-Cu-O]
| Crystal System: | Tetragonal |
| Formula Units per Cell: | |
| Space Group: |
|
Cell Parameters
|
Temp
K
|
a
Å
|
b
Å
|
c
Å
|
| 50 |
3.789 |
-- |
12.086 |
| 100 |
3.790 |
-- |
12.090 |
| 150 |
3.791 |
-- |
12.096 |
| 200 |
3.793 |
-- |
12.104 |
| 250 |
3.794 |
-- |
12.113 |
| 300 |
3.796 |
-- |
12.122 |
Measurement Method: X-ray diffraction
"The low-temperature crystal structures were examined by powder X-ray diffraction using low-temperature equipment with a refrigerator." No additional measurement details were noted.
Cautions: Evaluated Data
Digitized data were obtained from Figure 8 of the paper.
Critical Temperature for Tl:1212; [Tl-Sr-Ca-Cu-O]
| Critical Temperature (K) |
| 73 |
Measurement Method: SQUID magnetometer
"Superconducting properties were measured using a SQUID magnetometer under a magnetic field of (796 A/m = 10 Oe)."
Cautions: Evaluated Data
Magnetic Susceptibility for Tl:1212; [Tl-Sr-Ca-Cu-O]
| Temperature (K) |
Magnetic Susceptibility (arbitrary) |
| 3 |
-5.64 |
| 20 |
-5.58 |
| 39 |
-5.17 |
| 55 |
-4.46 |
| 68 |
-2.42 |
| 73 |
-0.60 |
| 75 |
-0.09 |
| 76 |
0.00 |
Measurement Method: SQUID magnetometer
"Superconducting properties were measured using a SQUID magnetometer under a magnetic field of (796 A/m = 10 Oe)."
Cautions: Evaluated Data
Digitized data were obtained from Figure 5 of the paper.
