Material Specification for Y:123; [Y-Ba-Cu-O]
Process: Solid State Reaction
Notes: The authors cite X.D. Wu, et al., Appl. Phys. Lett., Vol. 52, 754 (1988), and summarize the procedure as follows. "... pulses from a 248 nm KrF excimer laser are fired at a rate of 1 Hz onto a rotating Y1Ba2Cu3O7-x target inside the deposition chamber. The ensuing plume of ejected material from the target is collected onto a substrate mounted on a resistively heated holder (the substrate holder temperature, as measured by a thermocouple, may be varied from 25 °C to 650 °C), which is held at a distance of (about) 5 cm from the target. Equilibrium oxygen pressure of a few milli-torr is maintained in the chamber during deposition... Post-deposition annealing at 450 °C in flowing oxygen improved the Tc's significantly... we introduced oxygen directly into the plume emanating from the target by surrounding the plume with an open-ended box-like copper enclosure measuring about 2 cm3 and injecting a jet of oxygen gas directly into the center of this box... Substrates of single-crystal (100)SrTiO3... were used... Typically, films with a thickness of 2000 σ were deposited in about an hour. Immediately following the deposition, the substrate holder was allowed to cool down to room temperature in (33.3 kPa = 250 torr) of oxygen."
Formula: YBa2Cu3O7-x
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) |
| 88.6 |
Measurement Method: Electrical transport
"A portion of the film on SrTiO
3... was patterned into a 16-µm-wide line by reactive ion etching to measure the critical current density and for other magneto-transport measurements." No additional measurement details were noted.
Cautions: Evaluated Data
Critical Current Density for Y:123; [Y-Ba-Cu-O]
| Temperature (K) |
Critical Current Density (kA/cm2) |
| 76.9 |
689 |
| 77.4 |
633 |
| 77.9 |
633 |
| 78.4 |
559 |
| 80.7 |
374 |
| 81.3 |
364 |
| 81.7 |
299 |
| 84.4 |
141 |
| 85.2 |
94 |
| 87.2 |
20 |
| 89.2 |
0 |
Measurement Method: Electrical transport
"A portion of the film on SrTiO
3... was patterned into a 16-µm-wide line by reactive ion etching to measure the critical current density and for other magneto-transport measurements." No additional measurement details were noted.
Cautions: Evaluated Data
Digitized data were obtained from Figure 2 of the paper.
