Abstract
We have measured the temperature dependence of the superconductive critical magnetic field of three samples of beryllium from three different sources. The irregular geometric shape of one sample prevented a complete analysis of the data, but the data for the other two samples were well represented by the BCS model of superconductivity. The values of T c and H c (0) are found to be sample dependent. For the purest sample studied, T c =24.34±0.02 mK, H c (0)=107.7±0.2 μT and (γ/V)=32.9±0.3 μJ/cm3 K2. By a very small extrapolation of the data as a function of purity, it is inferred that the critical parameters for pure Be are: T c =24.38±0.02 mK, H c (0)=107.9 μT±0.2 μT and (γ/V)=33.0±0.3 μJ/cm3 K2.
Similar content being viewed by others
REFERENCES
J. Bardeen, L. N. Cooper, and J. R. Schrieffer, Phys. Rev. 108, 1157 (1957).
J. W. Gibson and R. A. Hein, Phys. Rev. Lett. 12, 688 (1964).
W. C. Black, R. T. Johnson, and J. C. Wheatley, J. Low Temp. Phys. 1, 64 (1969).
B. B. Triplett, N. E. Phillips, T. L. Thorp, D. A. Shirley, and W. D. Brewer, J. Low Temp. Phys. 12, 499 (1973).
R. L. Falge, Jr., Phys. Lett. 24A, 579 (1967).
R. W. Hill and P. L. Smith, Phil. Mag. 44, 636 (1953).
E. Gmelin, Comptes Rend. 259, 3459 (1964).
Superconductivity in the compounds Be22X; X=Mo, W, Tc, Re has been studied; see E. Bucher and V. Palmy, Phys. Lett. 24A, 340 (1967); E. Bucher, F. Heiniger, J. Muller, and P. Spitzli, Phys. Lett. 19, 263 (1965).
R. J. Soulen, Jr., J. de Physique, II, C-6-1162 (1978); see also, R. J. Soulen, Jr., and R. B. Dove, NBS Special Publication 260-62 (1978).
B. Muhlschlegel, Z. Physik 155, 313 (1959).
Thomas P. Sheahen, Phys. Rev. 149, 370 (1966).
Nuclear Metals, Inc., 2223 Main St., Concord, MA 01742.
Pechiney, Inc., 7, place du Chancelier Adenauer, 75218 Paris Cedex 16, France.
Du-Xiang Chen, James A. Brug, and Ronald B. Goldfarb, IEEE Trans. On Mag. 27, 3601 (1991).
W. A. Reed and J. H. Condon, Phys. Rev. B 1, 3504 (1970).
Guenter Ahlers, Phys. Rev. 145, 419 (1966).
R. A. Buhrman and W. P. Halperin, J. Low Temp. Phys. 16, 409 (1974).
R. J. Soulen, Jr. and Deborah Van Vechten, Phys. Rev. B 36, 239 (1987).
R. J. Soulen, Jr., J. F. Schooley, and G. A. Evans, Jr., Rev. Sci. Instrum. 44, 1537 (1973).
Yu. N. Ovchinnikov, B. I. Ivlev, R. J. Soulen, Jr., J. H. Claassen, W. E. Fogle, and J. H. Colwell, Phys. Rev. B 56, 9038 (1997).
See for example Fig 7.4 of G. Rickaysen, The Theory of Superconductivity, Interscience Publishers, New York, 1965.
P. W. Anderson, J. Phys. Chem. Solids 11, 26 (1959).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Soulen, R.J., Colwell, J.H. & Fogle, W.E. The Superconductive Critical Magnetic Field of Beryllium. Journal of Low Temperature Physics 124, 515–526 (2001). https://doi.org/10.1023/A:1012213728017
Issue Date:
DOI: https://doi.org/10.1023/A:1012213728017