Abstract
V3Ga thin films, 500, 20, 10 and 8 nm thick have been made for the purpose of studying the role of spin-orbit scattering in the theory of high field superconductivity. Either 1 percent do**s or thin layers of high-atomic-number elements have been added to these samples in an attempt to increase the spin-orbit scattering rate in this paramagnetically limited material. Critical fields are presented and material parameters are obtained by fitting to a modified Werthamer-Helfand-Hohenberg (WHH) theory. The uniqueness of the parameters obtained in this manner is discussed in light of Fermi-liquid effects. Comparisons are drawn with bulk V3Ga.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
Similar content being viewed by others
References
S. Foner and E. J. McNiff, Jr., S. Moehlecke, and A. R. Sweedler, Effects of composition on the upper critical field of V-Ga, Solid State Commun. 39:773 (1981).
A. A. Abrikosov and L. P. Gorkov, Zh Eksp. Teor. Fiz. 42:1088 (1962);
A. A. Abrikosov and L. P. Gorkov, [Sov. Phys. JETP, 15:752 (1962)];
R. Meservey and P. M. Tedrow, Phys. Rev. Lett. 41:805 (1978).
P. M. Tedrow and R. Meservey, Critical magnetic field on very thin superconducting aluminum films, Phys. Rev. B. 25:171 (1982).
D. Dew-Hughes, Superconducting A-15 compounds: A review, Cryogenics, 15:435 (1975).
T. P. Orlando, E. J. McNiff, Jr., S. Foner, and M. R. Beasley, Critical fields, Pauli paramagnetic limiting, and material parameters of Nb3Sn and V3Si, Phys. Rev. B. 19:4545 (1979).
T. P. Orlando and M. R. Beasley, Pauli limiting and the possibility of spin fluctuations in the A 15 superconductors, Phys, Rev. Lett. 46:1598 (1981).
The spin-orbit scattering parameter, bp, used here may be converted to λso by multiplying bp by the factor, 1.123.
N. R. Werthamer, E. Helfand, and P. C. Hohenberg, Phys. Rev. 147:295 (1966).
J. A. X. Alexander, T. P. Orlando, D. Rainer, and P. M. Tedrow, Theory of Fermi-liquid effects in high-field tunneling, Phys. Rev. B. 31:5811 (1985).
P. M. Tedrow, J. S. Moodera, and R. Meservey, Resolution of the spin states of a superconductor by tunneling from a ferromagnet, Solid State Commun. 44:587 (1982).
P. M. Tedrow, J. E. Tkaczyk, R. Meservey, S. J. Bending and R. Hammond, Critical magnetic field of VßGa thin films with third element additions, IEEE Trans. Magn. 21:1144 (1985).
R. Meservey and P. M. Tedrow, Surface Relaxation Times of Conduction electron spins in superconductors and normal metals, Phys. Rev. Lett. 41:805 (1978).
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1986 Plenum Press, New York
About this chapter
Cite this chapter
Tkaczyk, J.E., Tedrow, P.M. (1986). Critical Field Measurements on Very thin Films of V-Ga Superconductors. In: Reed, R.P., Clark, A.F. (eds) Advances in Cryogenic Engineering Materials . Advances in Cryogenic Engineering Materials , vol 32. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-9871-4_130
Download citation
DOI: https://doi.org/10.1007/978-1-4613-9871-4_130
Publisher Name: Springer, Boston, MA
Print ISBN: 978-1-4613-9873-8
Online ISBN: 978-1-4613-9871-4
eBook Packages: Springer Book Archive