Phys. Rev. B 58, 7367–7372 (1998)Electron energy loss for anisotropic systems: Application to GaN (101¯0)Received 10 December 1997; revised 30 April 1998; published in the issue dated 15 September 1998 We derive expressions for the theory of electron energy-loss (EEL) spectroscopy in the general case of an optically anisotropic surface on top of an optically anisotropic semi-infinite medium. As an example of the applications for anisotropic media, we present the calculated electron energy-loss spectra for the unreconstructed GaN (101¯0) wurtzite surface. An EEL differential spectroscopy technique is proposed in order to determine the atomic reconstruction and anisotropy of this important surface. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevB.58.7367
DOI:
10.1103/PhysRevB.58.7367
PACS:
78.20.-e, 73.20.-r, 78.90.+t, 73.90.+f
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