Hostname: page-component-77c89778f8-fv566 Total loading time: 0 Render date: 2024-07-19T06:18:12.152Z Has data issue: false hasContentIssue false
  • English
  • Français

Effect of the Volume Variation on the Superconductivity of TaSi2

Published online by Cambridge University Press:  15 February 2011

N. Keller ,
O. Laborde ,
U. Gottlieb  and
R. Madar
N. Keller
Affiliation:
Centre de Recherches sur les Très Basses Températures, CNRS, BP 166, 38042 Grenoble Cedex 9, France
O. Laborde
Affiliation:
Laboratoire des Champs Magnétiques Intenses, CNRS, BP 166, 38042 Grenoble Cedex 9, France
U. Gottlieb
Affiliation:
Laboratoire des Matériaux et du Génie Physique, ENSPG, INPG, BP 46, 38402 St. Martin d'Hères, France
R. Madar
Affiliation:
Laboratoire des Matériaux et du Génie Physique, ENSPG, INPG, BP 46, 38402 St. Martin d'Hères, France
Get access

Abstract

TaSi2, and NbSi2 are superconductors below 353 mK and 130 mK respectively. These compounds, like VSi2 which is not superconducting down to 100 mK, crystallise in the C40 structure. They differ by a slight variation of lattice parameters.

We have systematically investigated the superconducting properties of several samples of TaSi2 by magnetic and resistive measurements. A small difference on Tc is observed for the same crystal by the two techniques. Several explanations are presented for this result.

We also report a change of Tc under pressure in good agreement with those resulting of the volume variation for the two C40 superconductors previously studied.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 402: Symposium H – Silicide Thin Films-Fabrication, Properties and Applications , 1995 , 619
Copyright
Copyright © Materials Research Society 1996

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Gottlieb, U., Lasjaunias, J.C., Tholence, J.L., Laborde, O., Thomas, O. and Madar, R., Physical Review B 45, 4803 (1992).Google Scholar
2. Lasjaunias, J. C., Laborde, O., Gottlieb, U., Madar, R. and Thomas, O., J. Low Temp. Phys. 92, 335 (1993).Google Scholar
3. Gottlieb, U., Laborde, O., Thomas, O., Rouault, A., Senateur, J. P. and Madar, R., Applied Surface Science 53, 247 (1991).Google Scholar
4. Smith, T. F., Chu, C. W., Maple, M. B., Cryogenics 9, 53 (1969).Google Scholar
5. Tinkham, M., in Introduction to Superconductivity, McGraw Hill, (1975) New York Google Scholar
6. Thomas, O., Thesis, Institut National Polytechnique de Grenoble, (1986).Google Scholar
7. Ashcroft, N.W., Mermin, N.D., in Solid State Physics. Saunders College, (1976) HFW International EditionGoogle Scholar
8. Briggs, A., Thomas, O., Madar, R. and Senateur, J. P., Applied Surface Science 38, 88 (1989).Google Scholar
9. Knoedler, C. M. and Douglas, D. H., J. Low Temp. Phys. 37, 189 (1979).Google Scholar