Microwave-induced constant voltage steps in surface junctions of Bi_{2}Sr_{2}CaCu_{2}O_{8+\delta} single crystals

Yong-Joo Doh; Jinhee Kim; Kyu-Tae Kim; Hu-Jong Lee

doi:10.1103/PhysRevB.61.R3834

Microwave-induced constant voltage steps in surface junctions of Bi_{2}Sr_{2}CaCu_{2}O_{8+\delta} single crystals

Superconductivity 2009-10-31 v1

Authors: Yong-Joo Doh , Jinhee Kim , Kyu-Tae Kim , Hu-Jong Lee

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We have observed the zero-crossing steps in a surface junction of a mesa structure micro-fabricated on the surface of a Bi-2212 single crystal. With the application of microwave of frequencies 76 and 94 GHz, the current-voltage characteristics show clear voltage steps satisfying the ac Josephson relation. Increasing the microwave power, the heights of the steps show the Bessel-function behavior up to step number n=4. We confirm that the intrinsic surface junction meets the criterion for the observation of zero-crossing steps.

Keywords

microwave-induced voltage steps surface junction Bi-2212 ac Josephson relation Bessel function behavior

Cite

@article{arxiv.cond-mat/9908459,
  title  = {Microwave-induced constant voltage steps in surface junctions of Bi_{2}Sr_{2}CaCu_{2}O_{8+\delta} single crystals},
  author = {Yong-Joo Doh and Jinhee Kim and Kyu-Tae Kim and Hu-Jong Lee},
  journal= {arXiv preprint arXiv:cond-mat/9908459},
  year   = {2009}
}

Comments

8 pages, 4 figures, submitted to Phys. Rev. B

Related papers

View all related →