NIST High Temp. Superconducting Materials (HTS) Database

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: Superconducting State Magnetization and Critical Fields of Single-Crystal YNi₂B₂C
Author(s): M. Xu, P.C. Canfield, J.E. Ostenson, D.K. Finnemore, B.K. Cho, Z.R. Wang, and D.C. Johnston
Publication: Physica C Volume: 227 Issue: Not Available Year: 1994 Page(s): 321-326
Editor(s): Not Available
Publisher: Elsevier Science Publishers B.V.
Language: English
Notes: Not Available
Keywords: Material Specification, Critical Temperature, Critical Flux Density Hc2, Magnetic Susceptibility, Irreversibility Field

Materials and Properties

[Y-Ni-B-C]

Material Specification for ; [Y-Ni-B-C] Process: Melt Processed
Notes: "Single crystals... have been grown from Ni₂B flux... In this method, an arc-melted and annealed button of single-phase YNi₂B₂C is placed in an alumina crucible and an equal mass of Ni₂B is placed on top of it. These materials are then heated in flowing argon to 1490 °C and cooled to 1200 °C at 10 °C/h, followed by furnace cooling to room temperature. Single crystals of YNi₂B₂C grow into the Ni₂B flux from the original polycrystalline button as a result of this growth schedule. The crytals can be removed from the excess Ni₂B and are plate-like with either square or irregular surfaces in the a-b plane and weigh up to 20 mg. ... The data presented here are from the crystal with mass of 1.5 mg and dimensions of about 0.2 mm x 1.0 mm x 1.5 mm."
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 (K)	Critical Temperature (K)
2	15.5

Measurement Method: SQUID magnetometer
Magnetic properties "...have been measured in a Quantum Design SQUID magnetometer. ... A 3 cm scan length was chosen in the magnetization measurements to enhance field variability of less than 0.05%. ... In an external field of H = (159 A/m = 2 Oe) both the zero-field cooled (ZFC) and field cooled (FC) magnetizations have been measured... The irreversibility fields... are determined by plotting ΔM(T,H) = M -M as a function of T at a given field and extrapolating to ΔM = 0. ...H (T) data (were) determined by the M versus T curve..."

Cautions: Evaluated Data

Critical Flux Density Hc2 for ; [Y-Ni-B-C]

Temperature (K)	Crit.Mag.Flux Density Hc2 (T)
5.2	2.52
7.2	1.78
8.2	1.59
9.2	1.28
10.4	0.85
11.4	0.54
12.4	0.31

Magnetic Susceptibility for ; [Y-Ni-B-C]

Angle(c,H) (degrees)	Field Condition ()	Temperature (K)	Magnetic Susceptibility (arbitrary)
90	FC	5.8	-0.8
90	FC	7.9	-0.8
90	FC	9.9	-0.8
90	FC	10.8	-0.8
90	FC	11.8	-0.7
90	FC	12.8	-0.6
90	FC	13.8	-0.3
90	FC	14.4	-0.1
90	FC	15.4	0
90	FC	18.0	0
90	ZFC	5.0	-2.3
90	ZFC	7.0	-2.3
90	ZFC	8.8	-2.3
90	ZFC	10.9	-2.3
90	ZFC	11.9	-2.1
90	ZFC	12.8	-1.8
90	ZFC	13.0	-1.4
90	ZFC	13.3	-1.2
90	ZFC	13.4	-1.0
90	ZFC	13.7	-0.7
90	ZFC	13.8	-0.3
90	ZFC	14.3	-0.1
90	ZFC	15.4	0
90	ZFC	18.0	0
0	FC	6.0	-1.3
0	FC	7.8	-1.3
0	FC	9.9	-1.3
0	FC	11.9	-1.2
0	FC	12.9	-1.1
0	FC	13.7	-0.9
0	FC	14.2	-0.4
0	FC	14.7	-0.1
0	FC	15.9	0
0	FC	18.0	0
0	ZFC	5.1	-6.4
0	ZFC	7.0	-6.4
0	ZFC	9.1	-6.3
0	ZFC	10.9	-6.4
0	ZFC	12.0	-6.3
0	ZFC	13.0	-5.9
0	ZFC	13.4	-3.3
0	ZFC	13.7	-1.9
0	ZFC	13.9	-1.2
0	ZFC	14.1	-0.9
0	ZFC	14.5	-0.4
0	ZFC	15.0	-0.1
0	ZFC	15.9	0
0	ZFC	18.0	0

Irreversibility Field for ; [Y-Ni-B-C]

Temperature (K)	Irreversibility Field (T)
4.0	2.00
5.7	1.74
7.0	1.49
8.0	1.24
9.5	1.00
10.5	0.73
11.7	0.48
13.5	0.09