Observation of individual Josephson vortices in bicrystal grain-boundary junctions

H. Xin, D. Oates, S. Sridhar, G. Dresselhaus, M. Dresselhaus

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


The response of (Formula presented) bicrystal grain-boundary junctions to small dc magnetic fields (Formula presented) has been probed with a low-power microwave (rf) signal of (Formula presented) in a microwave-resonator setup. Peaks in the microwave loss at certain dc magnetic fields are observed that result from individual Josephson vortices penetrating into the grain-boundary junctions under study. The system is modeled as a long Josephson junction described by the sine-Gordon equation with appropriate boundary conditions. Quantitative agreement between the experimental data and the model has been obtained. The hysteresis effect of dc magnetic field is also studied and the results of measurement and calculation are compared.

Original languageEnglish (US)
Pages (from-to)R14952-R14955
JournalPhysical Review B - Condensed Matter and Materials Physics
Issue number22
StatePublished - 2000

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics


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