High field properties of ternary metal-molybdenum-sulfides

Author

Foner, S. ; McNiff, E.J., Jr. ; Alexander, E.J.

Author_Institution

Massachusetts Institute of Technology, Cambrdige, Massachusetts

Volume

11

Issue

2

fYear

1975

fDate

3/1/1975 12:00:00 AM

Firstpage

155

Lastpage

158

Abstract

Measurements of the upper critical fields are presented for ternary metal-molybdenum-sulfides as a function of temperature, T, with dc magnetic fields up to ∼215kG and pulsed fields to ∼500kG. A nearly linear variation of HC2versus T is observed up to the highest dc fields for all the compounds. The materials (nominal composition), Tc(measured); $(dH_{C2}/dT)_{T=T_{c}}$ (measured), and HC2(4.2 K) (calculated) for a dirty type II superconductor assuming no paramagnetic limiting are respectively: (a) Pb0.9Mo5.1S6: 11.7 K, 60 kG/K, 390 kG; (b) SnAl0.5Mo4.5S6: 14.2 K, 32 kG/K; 275 kG; (c) SnMo5S6:13.4K, 37kG/K; 290 kG; (d) PbMo5.1S6: 14.4, 60kG/K, 515kG. Pulsed field measurements yield HC2(4.2 K) = 390 kG for (a), 275 kG for (b), 290 kG for (c), and ≃510kG for (d). The PbMo5.1S6has the highest value of HC2measured to date.

Keywords

Molybdenum materials/devices; Superconducting materials; Composite materials; Laboratories; Magnetic field measurement; Magnetic materials; Powders; Pulse measurements; Superconducting coils; Superconducting magnets; Superconducting materials; Temperature;

fLanguage

English

Journal_Title

Magnetics, IEEE Transactions on

Publisher

ieee

ISSN

0018-9464

Type

jour

DOI

10.1109/TMAG.1975.1058762

Filename

1058762