Low energy electron diffraction from Na(110) and Na2O(111) surfaces |
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| Authors: | S Andersson JB Pendry PM Echenique |
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| Institution: | Department of Physics, Chalmers University of Technology, S-402 20 Goteborg 5, Sweden;Daresbury Laboratory, Science Research Council, Daresbury, Warrington WA4 4AD, UK;Cavendish Laboratory, Cambridge CB3 OHE, UK |
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| Abstract: | Surfaces ofNa(110) are grown, investigated and oxidised to give Na2O(111) surfaces. LEED spectra are taken for these surfaces and compared with theory to determine the surface composition of sodium oxide: the surface terminates the crystal in an integral number of electrically neutral NaONa sandwiches, with a bulk-like inter layer spacing. The effective Debye temperature for the Na(110) surface was found to be 107 K. |
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