Generation and detection of incoherent hypersonic vibrations using superconducting tunnel junctions

Downloads

Authors

  • Mikołaj ALEKSIEJUK Institute of Fundamental Technological Research Polish Academy of Sciences, Poland
  • Mieczysław M. DOBRZAŃSKI Institute of Fundamental Technological Research Polish Academy of Sciences, Poland
  • Wiesław LARECKI Institute of Radioelectronies of Warsaw Technical University, Poland

Abstract

The investigations of superconducting tunnel junctions as phonon generators and detectors are reported. Theoretical predictions and the published results of the experimental research on such devices are briefly reviewed. The experimental results of the investigations of the current-voltage characteristics of fabricated tin tunnel junctions are presented and discussed, and then the measured current-signal transmission characteristics of pairs of identical tunnel junctions deposited on the corundum sample are analyzed and interpreted. The results obtained are compared with the results of similar investigations reported in the literature.

References

[1] W. EISENMENGER, Emission, absorption and propagation of acoustic THz waves in solids, Archives of Acoustics 4, 2, 141-156 (1979).

[2] W. EISENMANGER, A. M. DAYEM, Quantum generation and detection of incoherent phonons in superconductors, Phys. Rev. Lett., 13, 4, 125-127 (1967).

[3] H. KINDER, Phonon generation by the a.c. Josephson effect, Phys. Lett., 36A, 5, 379-380 (1971).

[4] V. NARAYANAMURTI, R. C. DYNES, Intense tunable phonon fluorescence in superconductors, Phys. Rev. Lett., 27, 7, 410-413 (1971).