NIST High Temp. Superconducting Materials (HTS) Database:

NIST Standard Reference Database 62

Last Update to Data Content: 1996

DOI: https://doi.org/10.18434/T4KP8J


Bibliographic Information

Title: Specific Heat of Single-Crystal YNi2B2C and TmNi2B2C Superconductors
Author(s): R. Movshovich, M.F. Hundley, J.D. Thompson, P.C. Canfield, B.K. Cho, and A.V. Chubukov
Publication: Physica C Volume: 227 Issue: Not Available Year: 1994 Page(s): 381-386
Editor(s): Not Available
Publisher: Elsevier Science Publishers B.V.
Language: English
Notes: Not Available
Keywords: Material Specification, Specific Heat

Materials and Properties

[Y-Ni-B-C]
[Tm-Ni-B-C]
Material Specification for ; [Y-Ni-B-C] Process: Melt Processed
Notes: "Briefly, an annealed, single-phase button of arc-melted RENi2B2C is heated in flowing argon to 1490 °C with an equal mass of Ni2B, which acts as a flux. Cooling to 1200 °C at 10 °C/h, followed by furnace cooling to room temperature, produces single crystals that grow into the flux."
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:

Specific Heat for ; [Y-Ni-B-C]
Magnetic Field (T) Temperature (K) Specific Heat (J kg-1 K-1)
0 2 0.01
0 8 0.68
0 11 2.06
0 13 3.31
0 14 4.25
0 15 2.95
0 17 3.83
0 18 4.52
0 19 5.28
0 20 5.59
5 1 0.11
5 8 0.92
5 13 2.02
5 15 2.99
5 18 4.40
5 20 5.78
Measurement Method: Specific heat methods
"Specific heat above 1.5 K was measured using a standard decay method on at most four crystals with a total mass of 30-40 mg; whereas, lower temperature measurements were made using a semi-adiabatic technique." No additional measurement details were noted.

Cautions: Unevaluated Data
Digitized data were obtained from Figure 1 of the paper.
Material Specification for ; [Tm-Ni-B-C] Process: Melt Processed
Notes: "Briefly, an annealed, single-phase button of arc-melted RENi2B2C is heated in flowing argon to 1490 °C with an equal mass of Ni2B, which acts as a flux. Cooling to 1200 °C at 10 °C/h, followed by furnace cooling to room temperature, produces single crystals that grow into the flux."
Formula: TmNi2B2C
Informal Name:
Chemical Family: Tm-Ni-B-C
Chemical Class: Carbide
Structure Type: Single Crystal
Manufacturer: In House
Commercial Name: In House
Production Date:
Lot Number:
Production Form:

Specific Heat for ; [Tm-Ni-B-C]
Magnetic Field (T) Temperature (K) Specific Heat (J kg-1 K-1)
0 0.11 2.00
0 0.19 1.75
0 0.26 1.74
0 0.50 3.93
0 0.74 6.12
0 0.97 9.21
0 1.19 13.66
0 1.33 16.56
0 1.47 20.57
0 1.54 18.53
0 1.55 16.27
0 1.57 9.51
0 1.63 4.99
0 1.64 4.53
0 1.71 4.29
0 1.74 4.06
0 4.5 1.91
0 6.7 4.53
0 8.7 8.63
0 10.0 10.93
0 10.7 11.88
0 11.2 11.95
0 13.6 15.37
0 16.4 18.08
0 18.6 20.4
0 20.9 22.47
Measurement Method: Specific heat methods
"Specific heat above 1.5 K was measured using a standard decay method on at most four crystals with a total mass of 30-40 mg; whereas, lower temperature measurements were made using a semi-adiabatic technique." No additional measurement details were noted.

Cautions: Unevaluated Data
Digitized data were obtained from Figures 3 and 4 of the paper.