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Electron energy-loss spectroscopy of inhomogeneous systems

Author

Listed:
  • Fuchs, Ronald
  • Mendoza, Carlos I.
  • Barrera, Rubén G.
  • Carrillo, JoséLuis

Abstract

After beginning with a brief review of the theory of electron energy loss by an unbounded random system of spherical inclusions characterized by a local dielectric function, we examine several extensions of this theory. We first treat an inhomogeneous system of spherical particles confined to a half-space. A surface response function, which can be used tocalculate the energy-loss spectrum for charged particles moving outside the system, is defined, and this response function is written in a spectral representation. We discuss different approaches to this problem: the semiclassical infinite barrier model, an exact formal theory, and a continuous effective medium theory. Finally, we develop a theory of electron energy loss for a mixture of two components with arbitrary geometry, unbounded in three dimensions.

Suggested Citation

  • Fuchs, Ronald & Mendoza, Carlos I. & Barrera, Rubén G. & Carrillo, JoséLuis, 1997. "Electron energy-loss spectroscopy of inhomogeneous systems," Physica A: Statistical Mechanics and its Applications, Elsevier, vol. 241(1), pages 29-44.
    • Handle: RePEc:eee:phsmap:v:241:y:1997:i:1:p:29-44
    DOI: 10.1016/S0378-4371(97)00056-3
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