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Synchronization of high-frequency oscillations of phase-slip centers in a tin whisker under microwave radiation | | V. I. Kuznetsov
; V. A. Tulin
; | | Date: |
18 Jul 2004 | | Journal: | JETP 86, 745 (1998) [Russian original: Zh. Eksp. Teor. Fiz. 113, 1364 (1998)] | | Subject: | Superconductivity; Mesoscopic Systems and Quantum Hall Effect | cond-mat.supr-con cond-mat.mes-hall | | Abstract: | Current-voltage characteristics of a system with a variable number of phase-slip centers resulting from phase separation in a tin whisker under external microwave field with a frequency Omega/2pi=35-45 GHz have been studied experimentally. Emergence and disappearance of steps with zero slope in a whisker’s current-voltage characteristic at U_{m/n}=(m/n)U_{Omega}, where m and n are integers and U_{Omega} is determined by Josephson’s formula hbarOmega=2eU_{Omega}, have been investigated. Microwave field generated by phase-slip centers is nonharmonic, and the system of phase-slip centers permits synchronization of internal oscillations at a microwave frequency by an external field with a frequency which is the n-th harmonic of internal oscillations. The estimated microwave power generated by a whisker is 10^{-8} W. Stimulation of superconductivity in a current-carrying whisker has been detected. | | Source: | arXiv, cond-mat/0407464 | | Services: | Forum | Review | PDF | Favorites | |
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