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Relaxation of Tunneling Systems by Conduction Electrons in a Metallic Glass

Acoustic experiments on the metallic glass Pd sub 0.775Si sub 0.165Cu sub 0.06 are presented which show a tunneling-system decay rate at 0.01 deg K enhanced by a factor of 10 exp 4 over insulating glass. A theory is presented for decay based upon the coupling of tunneling systems to conduction elect...

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Published in:Physical review letters 1978-11, Vol.41 (21), p.1487-1491
Main Authors: Golding, Brage, Graebner, John E., Kane, Anne B., Black, J. L.
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Language:English
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container_end_page 1491
container_issue 21
container_start_page 1487
container_title Physical review letters
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creator Golding, Brage
Graebner, John E.
Kane, Anne B.
Black, J. L.
description Acoustic experiments on the metallic glass Pd sub 0.775Si sub 0.165Cu sub 0.06 are presented which show a tunneling-system decay rate at 0.01 deg K enhanced by a factor of 10 exp 4 over insulating glass. A theory is presented for decay based upon the coupling of tunneling systems to conduction electrons, and the parameters of the theory are obtained from experiment. Relaxational absortion and in this amorphous metal are interpreted in terms of a tunneling model with a broad spectrum of decay rates.20 refs.--AA
doi_str_mv 10.1103/PhysRevLett.41.1487
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title Relaxation of Tunneling Systems by Conduction Electrons in a Metallic Glass
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