Material Specification for Nd:21; [Nd(Ce)-Cu-O]
Process: Flux Growth
Notes: The authors cite S. Pinol et al., Physica C, Vol. 165, 265 (1990), and summarize the procedure as follows. "... single crystals were grown by a self-flux method using an excess of CuO flux... To induce superconductivity, the crystals were annealed at 940 °C in a reducing argon atmosphere for 17 h... Contacts were attached to the crystals by a two-step procedure. First, four lines of gold paint were placed and heated at 400 °C for 10 mm under Ar, then platinum wires (Φ = 50 µm) were glued to the gold lines by using silver paste."
Formula: Nd2-xCexCuO4-y
Informal Name: Nd:21
Chemical Family: Nd(Ce)-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 Nd:21; [Nd(Ce)-Cu-O]
| Critical Temperature (K) |
| 22.8 |
Measurement Method: Electrical resistivity method
The authors cite M.A. Crusellas et al., Physica C, Vol. 180, 313 (1991), and summarize the procedure as follows. "In-plane and c-axis electrical resistivity measurements under hydrostatic pressure up to 2 GPa, were performed using a Cu-Be self-clamping device containing a teflon capsule and a lead manometer. The sample was immersed in a 1:1 mixture of isoamyl alcohol and n-pentane as a pressure transmitting medium... ac current (100 µA, 17 Hz) and a synchronous voltage detector (were) used to measure the resistivity."
Cautions: Evaluated Data
Resistivity (normal state) for Nd:21; [Nd(Ce)-Cu-O]
| Direction () |
Pressure (GPa) |
Temperature (k) |
Resistivity (normal state) (mΩ·cm) |
| ab-plane |
0 |
12 |
0 |
| ab-plane |
0 |
21 |
0 |
| ab-plane |
0 |
22 |
0.2 |
| ab-plane |
0 |
24 |
0.3 |
| ab-plane |
0 |
100 |
0.6 |
| ab-plane |
0 |
172 |
0.9 |
| ab-plane |
0 |
223 |
1.3 |
| ab-plane |
0 |
265 |
1.6 |
| ab-plane |
0 |
298 |
1.9 |
| ab-plane |
1.8 |
12 |
0 |
| ab-plane |
1.8 |
21 |
0 |
| ab-plane |
1.8 |
24 |
0.3 |
| ab-plane |
1.8 |
80 |
0.4 |
| ab-plane |
1.8 |
149 |
0.7 |
| ab-plane |
1.8 |
213 |
1.1 |
| ab-plane |
1.8 |
255 |
1.4 |
| ab-plane |
1.8 |
298 |
1.8 |
| c-axis |
0 |
17 |
0 |
| c-axis |
0 |
19 |
0 |
| c-axis |
0 |
20 |
290 |
| c-axis |
0 |
21 |
660 |
| c-axis |
0 |
55 |
690 |
| c-axis |
0 |
133 |
910 |
| c-axis |
0 |
208 |
1210 |
| c-axis |
0 |
257 |
1430 |
| c-axis |
0 |
296 |
1600 |
| c-axis |
1.8 |
19 |
0 |
| c-axis |
1.8 |
20 |
340 |
| c-axis |
1.8 |
22 |
620 |
| c-axis |
1.8 |
73 |
690 |
| c-axis |
1.8 |
134 |
830 |
| c-axis |
1.8 |
210 |
1100 |
| c-axis |
1.8 |
241 |
1240 |
| c-axis |
1.8 |
295 |
1430 |
Measurement Method: Electrical resistivity method
The authors cite M.A. Crusellas et al., Physica C, Vol. 180, 313 (1991), and summarize the procedure as follows. "In-plane and c-axis electrical resistivity measurements under hydrostatic pressure up to 2 GPa, were performed using a Cu-Be self-clamping device containing a teflon capsule and a lead manometer. The sample was immersed in a 1:1 mixture of isoamyl alcohol and n-pentane as a pressure transmitting medium... ac current (100 µA, 17 Hz) and a synchronous voltage detector (were) used to measure the resistivity."
Cautions: Evaluated Data
Digitized data were obtained from Figure 1 of the paper.
