Material Specification for ; [Y-Ni-B-C]
Process: Melt Processed
Notes: The authors cite M. Xu et al., Physica C, Vol. 227, 321 (1994), and summarize the procedure as follows. "Single crystals of YNi2B2C and LuNi2B2C were grown from Ni2B... the Meissner fractions are 18% and 22% for YNi2B2C and LuNi2B2C, respectively."
Formula: YNi2B2C
Informal Name:
Chemical Family: Y-Ni-B-C
Chemical Class: Carbide
Structure Type: Single Crystal
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Critical Temperature for ; [Y-Ni-B-C]
| Transition Width () |
Critical Temperature (K) |
| 0.6 |
15.4 |
Measurement Method: Magnetic susceptibility
No measurement details were noted.
Cautions: Unevaluated Data
Magnetic Susceptibility for ; [Y-Ni-B-C]
| Temperature (K) |
Magnetic Susceptibility (arbitrary) |
| 10.1 |
-0.173 |
| 11.1 |
-0.169 |
| 12.1 |
-0.169 |
| 13.0 |
-0.169 |
| 14.0 |
-0.169 |
| 14.4 |
-0.166 |
| 14.6 |
-0.166 |
| 15.0 |
-0.141 |
| 15.1 |
-0.079 |
| 15.4 |
-0.011 |
| 15.5 |
0.000 |
| 16.0 |
0.000 |
Measurement Method: Magnetic susceptibility
No measurement details were noted.
Cautions: Unevaluated Data
Digitized data were obtained from Figure 1 of the paper.
Energy Gap(2 delta) for ; [Y-Ni-B-C]
| 2Δ/kTc () |
Energy Gap (2Δ) (meV) |
| 3.9 |
5.1 |
Measurement Method: Scanning tunneling microscopy
The authors cite G.T. Jeong et al., Phys. Rev. B, Vol. 49, 15416 (1994), and summarize the procedure as follows. "...we performed an electron-tunneling measurement onto the (001) direction for single-crystalline YNi
2B
2C and LuNi
2B
2C by a point-contact spectroscopy using a low-temperature scanning tunneling microscope (LT-STM). ... The mechanical part of the low-temperature STM system was mounted in a long cylindrical stainless tube filled with He gas to reduce the thermal drift effect. We used a mechanically wire drawn Pt-Rh tip which turned out to be more stable than the electrochemically polished W tip. The typical radius of the Pt-Rh tip used in this experiment is estimated to be about 0.2 µm from SEM image. ... After mounting the sample, the cylinder was filled with helium exchange gas. A stable tunneling current was obtained for the tunneling resistance of the order of about 1 MΩ at 4.2 K. Tunneling spectroscopy was performed onto the (001) direction of the crystal surface by sweeping the bias voltage with a simultaneous measurement of the tunneling current. Resulting I-V curves were averaged 256 times. The tunneling conductance dI/dV was measured by the conventional lock-in technique with the modulation signal of 50 µV and a sweep time of 50 s."
Cautions: Evaluated Data
Material Specification for ; [Lu-Ni-B-C]
Process: Melt Processed
Notes: The authors cite M. Xu et al., Physica C, Vol. 227, 321 (1994), and summarize the procedure as follows. "Single crystals of YNi2B2C and LuNi2B2C were grown from Ni2B... the Meissner fractions are 18% and 22% for YNi2B2C and LuNi2B2C, respectively."
Formula: LuNi2B2C
Informal Name:
Chemical Family: Lu-Ni-B-C
Chemical Class: Carbide
Structure Type: Single Crystal
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:
Critical Temperature for ; [Lu-Ni-B-C]
| Transition Width () |
Critical Temperature (K) |
| 0.5 |
15.7 |
Measurement Method: Magnetic susceptibility
No measurement details were noted.
Cautions: Unevaluated Data
Magnetic Susceptibility for ; [Lu-Ni-B-C]
| Temperature (K) |
Magnetic Susceptibility (arbitrary) |
| 10.1 |
-0.213 |
| 11.1 |
-0.206 |
| 12.1 |
-0.212 |
| 12.5 |
-0.215 |
| 13.1 |
-0.209 |
| 14.0 |
-0.209 |
| 14.5 |
-0.203 |
| 15.0 |
-0.199 |
| 15.3 |
-0.162 |
| 15.6 |
-0.042 |
| 15.8 |
0.000 |
| 16.0 |
0.000 |
Measurement Method: Magnetic susceptibility
No measurement details were noted.
Cautions: Unevaluated Data
Digitized data were obtained from Figure 1 of the paper.
Energy Gap(2 delta) for ; [Lu-Ni-B-C]
| 2Δ/kTc () |
Energy Gap (2Δ) (meV) |
| 3.9 |
5.3 |
Measurement Method: Scanning tunneling microscopy
The authors cite G.T. Jeong et al., Phys. Rev. B, Vol. 49, 15416 (1994), and summarize the procedure as follows. "...we performed an electron-tunneling measurement onto the (001) direction for single-crystalline YNi
2B
2C and LuNi
2B
2C by a point-contact spectroscopy using a low-temperature scanning tunneling microscope (LT-STM). ... The mechanical part of the low-temperature STM system was mounted in a long cylindrical stainless tube filled with He gas to reduce the thermal drift effect. We used a mechanically wire drawn Pt-Rh tip which turned out to be more stable than the electrochemically polished W tip. The typical radius of the Pt-Rh tip used in this experiment is estimated to be about 0.2 µm from SEM image. ... After mounting the sample, the cylinder was filled with helium exchange gas. A stable tunneling current was obtained for the tunneling resistance of the order of about 1 MΩ at 4.2 K. Tunneling spectroscopy was performed onto the (001) direction of the crystal surface by sweeping the bias voltage with a simultaneous measurement of the tunneling current. Resulting I-V curves were averaged 256 times. The tunneling conductance dI/dV was measured by the conventional lock-in technique with the modulation signal of 50 µV and a sweep time of 50 s."
Cautions: Evaluated Data
