The pressure dependence of superconducting energy gaps from high pressure critical field measurements |
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| Authors: | F. Rothwarf L.W. Dubeck |
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| Affiliation: | U.S. Army Electronics Technology and Devices Laboratory (ECOM), Fort Monmouth, New Jersey 07703, U.S.A.;Physics Department, Temple University, Philadelphia, Pennsylvania 19122, U.S.A. |
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| Abstract: | It is shown that the Toxen relationship Δ/kTc = Tc/Hc(0) (dHc/dT)Tc can be used to obtain Δ/kTc as a function of pressure from critical field curves taken at high pressures. Data for Sn, In, Zn, Al, Cd, Ga, and Th are analyzed and Δ(p)/kTc are tabulated. For Sn and In a comparison was made of energy gaps so determined with those measured directly by tunnelling. |
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