Concepts in Surface Physics - download pdf or read online

By Dr. M.-C. Desjonquères, Dr. D. Spanjaard (auth.)

ISBN-10: 3642974848

ISBN-13: 9783642974847

ISBN-10: 3642974864

ISBN-13: 9783642974861

The research of phenomena at sturdy surfaces is of significant value in physics, simply because an effective pattern is usually involved with different media through its floor. "Concepts in floor Physics" offers an academic therapy of the most thoughts of the physics of crystal surfaces. Emphasis is put on simplified calculations - and the corresponding particular analytical derivations - which are capable of throw mild at the most crucial actual mechanisms. extra rigorous ideas, which regularly require a large number of desktop time, also are defined. concept is in comparison with experimentwhere attainable, with the experimental tools being defined from a theoretical instead of a technical perspective. themes handled comprise thermodynamic and statistical homes of unpolluted and absorbate lined surfaces, atomic constitution, vibrational houses, digital constitution, and the idea of physisorption and chemisorption.

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14), which gives

2) k with k = 2nn/L, n being a posItive or negative integer, since the Fourier coefficient, Yo, being the spatial average of the height variations, vanishes according to our assumptions. The other Fourier coefficients satisfy Y-k = Y: since y(x) is a real function. On the other hand, k has a cut-off at n/~ since, due to the finite thickness of the line, it is impossible to have an oscillation with a wavelength shorter than 2~. 1 and 2) we have L\E 1 = - - Po L 2 L kk'YkYk' J ei(k+k')xdx k L k' 0 The function under the integral has a period L/(n + n') (n, n' positive or negative integers) so that the integral vanishes unless k + k' = O.

The configuration of the step is given by the set of lengths of the N + 1 close packed surface atomic rows ending at the step edge numbered from left to right (see 30 2. Thermodynamical a nd Statistical Properties of Clean Surfaces Fig. 10. Simple cubic crystal with an arbitrary number of atoms at T = 0 K 0 0 0 0 0 0 0 0 0 0 0 ? ' • ~ I I ~ I I (a) • I ·\... Overhang • • • • • • • • • Island •• • • • • • • • • • • • • • • Adatom • • • • • • • • • • • • • • • • • • (b) Fig. 11a, b. Configurations of a step edge on a sq uare surface lattice (full circles are occupied sites): a configurations allowed in the model.

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Concepts in Surface Physics by Dr. M.-C. Desjonquères, Dr. D. Spanjaard (auth.)

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