Nanoscale Investigation of a Rayleigh Wave on LiNbO3

  • J. Yang
  • R. Koch
Conference paper
Part of the NATO Science Series II: Mathematics, Physics and Chemistry book series (NAII, volume 186)


The scanning tunneling microscope (STM) after sophisticated modification is a powerful technique to investigate surface acoustic waves (SAWs) with high spatial resolution. Using our ultra high vacuum SAW-STM, a Rayleigh wave propagating in LiNbO3 has been characterized. In accordance with a previous model, the amplitude and phase signals extracted from the modulated tunneling current depend on the surface inclination and the eccentricity β of the SAW. From comparison with simulated amplitude and phase images a value for β=30–40° is obtained in good agreement with the theoretical eccentricity of the Rayleigh wave.


Surface acoustic waves elastic properties of solid scanning tunneling microscope 


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Copyright information

© Kluwer Academic Publishers 2005

Authors and Affiliations

  • J. Yang
    • 1
  • R. Koch
    • 1
  1. 1.Paul-Drude-Institut für FestkörperelektronikBerlin

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