Microwave-induced current steps in intrinsic Josephson junctions patterned on Bi2Sr2CaCu2O8 single crystal

H. B. Wang, Y. Aruga, T. Tachiki, Y. Mizugaki, J. Chen, K. Nakajima, T. Yamashita, P. H. Wu

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19 Citations (Scopus)

Abstract

The microwave responses of stacked Bi2Sr2CaCu2O8 (BSCCO) intrinsic junctions at frequencies around 7 GHz are presented. Remarkable current steps on its current-voltage (I-V) curves were observed by measuring the c-axis transport of the BSCCO with a-b plane sizes of 10 μm×10 μm. The stack is regularly spaced with 4 mV intervals with increasing microwave power, although more steps are visible and their heights are modulated. Both temperature dependence and frequency dependence of the step structures are also observed. Possible explanations for the step structures, based on resonances excited by microwave or geometric resonances in the junction cavity, are discussed.

Original languageEnglish
Pages (from-to)3693-3695
Number of pages3
JournalApplied Physics Letters
Volume74
Issue number24
DOIs
Publication statusPublished - 1999 Jun 14

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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    Wang, H. B., Aruga, Y., Tachiki, T., Mizugaki, Y., Chen, J., Nakajima, K., Yamashita, T., & Wu, P. H. (1999). Microwave-induced current steps in intrinsic Josephson junctions patterned on Bi2Sr2CaCu2O8 single crystal. Applied Physics Letters, 74(24), 3693-3695. https://doi.org/10.1063/1.123223