Phonon generation by the AC Josephson effect

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Abstract

Emission of phonons of energy h{stroke}ω≥2Δ from a self coupled Josephson tunnelling into its substrate was observed. The quantum efficiency varies with the voltage applied to the junction and shows abrupt changes at the "subharmonic" voltages.

Original languageEnglish
Pages (from-to)379-380
Number of pages2
JournalPhysics Letters, Section A: General, Atomic and Solid State Physics
Volume36
Issue number5
DOIs
StatePublished - 27 Sep 1971
Externally publishedYes

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