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000039829 084__ $$2WoS$$aChemistry, Physical
000039829 084__ $$2WoS$$aPhysics, Condensed Matter
000039829 1001_ $$0P:(DE-Juel1)VDB5552$$aEmundts, A.$$b0$$uFZJ
000039829 245__ $$aContinuous and discontinuous transitions on 3D equilibrium crystal shapes : a new look at Pb and Au
000039829 260__ $$aAmsterdam$$bElsevier$$c2001
000039829 300__ $$a13
000039829 3367_ $$0PUB:(DE-HGF)16$$2PUB:(DE-HGF)$$aJournal Article
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000039829 440_0 $$05673$$aSurface Science$$v481$$x0039-6028
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000039829 520__ $$aEquilibrium crystal shapes exhibit flat facets and rough vicinal surfaces. with transitions between them being either continuous or discontinuous, the latter recognizable by a sharp edge. In general, mixed repulsive/attractive step-step interactions may lead to continuous or discontinuous facet-to-vicinal transitions. In can be shown that the contact angle at the facet for a discontinuous transition is directly related to the ratio of the step interaction strengths. Alternatively, surface reconstruction of facets can also be responsible for sharp edges at the facet boundary. In this case the contact angle is related to the difference between surface free energies of the reconstructed and unreconstructed facet as well as the corresponding difference of step interaction energies. Fitting the experimental shapes by theoretical expressions can be used to extract the relevant surface and step free energies and also step interaction energies. Experimental examples of Pb and Au equilibrium shapes are evaluated and discussed. Step free energies of vicinal Au(1 1 1) and Au(1 0 0) surfaces, evaluated by both models, are 30 and 10 meV/A(2), respectively. (C) 2001 Elsevier Science B.V. All rights reserved.
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000039829 65320 $$2Author$$aequilibrium thermodynamics and statistical mechanics
000039829 65320 $$2Author$$afaceting
000039829 65320 $$2Author$$asurface energy
000039829 65320 $$2Author$$asurface structure, morphology, roughness, and topography
000039829 65320 $$2Author$$avicinal single crystal surfaces
000039829 65320 $$2Author$$ascanning tunneling microscopy
000039829 65320 $$2Author$$ascanning electron microscopy (SEM)
000039829 7001_ $$0P:(DE-Juel1)VDB5490$$aBonzel, D. I.$$b1$$uFZJ
000039829 7001_ $$0P:(DE-HGF)0$$aWynblatt, P.$$b2
000039829 7001_ $$0P:(DE-HGF)0$$aThürmer, K.$$b3
000039829 7001_ $$0P:(DE-HGF)0$$aReutt-Robey, J.$$b4
000039829 7001_ $$0P:(DE-HGF)0$$aWilliams, E. D.$$b5
000039829 773__ $$0PERI:(DE-600)1479030-0$$a10.1016/S0039-6028(01)01055-X$$gVol. 481, p. 13$$p13$$q481<13$$tSurface science$$v481$$x0039-6028$$y2001
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000039829 9141_ $$y2001
000039829 915__ $$0StatID:(DE-HGF)0010$$aJCR/ISI refereed
000039829 9201_ $$0I:(DE-Juel1)VDB43$$d31.12.2006$$gISG$$kISG-3$$lInstitut für Grenzflächen und Vakuumtechnologien$$x0
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