Browsing by Author "Chen, B. J."

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Superconducting transition parameters in aluminum-lithium alloys (0-10 at.% Li)
(2007-05-01)
Ou, M. N.
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Yang, T. J.
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Chen, B. J.
;
Chen, Y. Y.
;
Ho, J. C.
The superconducting transition temperatures T-C of face-centered cubic Al1-x-Li-x alloys (x = 0-0.10) exhibit a minimum near x = 0.03 (3 at.% Li). The McMillan strong-coupling T, equation yields a similar trend of the electron-phonon coupling constant.. Meanwhile, the density of states at the Fermi level N(0) decreases monotonically with increasing x. It appears that T-C drops initially due to a reduced N(0), which is then overtaken by alloying-enhanced factors of phonon or electron-phonon interaction. (c) 2007 Elsevier Ltd. All rights reserved.