Holographic Leed: A Review of Recent Progress

Saldin, D. K.; Chen, X.; Vamvakas, J. A.; Ott, Matthias; Wedler, H.; Reuter, Karsten; Heinz, K.; Andrés, Pedro

doi:10.1142/s0218625x97001176

Cited by 23 publications

(33 citation statements)

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“…5 relatively insensitive to the disorder (which mainly diffracts in directions between beams). Prior work comparing LEED and diffuse LEED IV spectra has established the validity of this approach [17,18]. A number of structural models were tested, and the respective Pendry R-factors are listed in Fig.…”

Section: The Adc Reconstruction Model On the Zn-facementioning

confidence: 99%

Stabilizing forces acting on ZnO polar surfaces: STM, LEED, and DFT

Dong

Shi

et al. 2014

Phys. Rev. B

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New understanding has been reached on competing forces acting to stabilize the polar surfaces of intrinsic ZnO. To compensate an accumulating dipole moment normal to ionic planes, the Madelung electrostatic force and the bonding ability of undercoordinated Zn ions compete to deplete more Zn atoms from the (0001) face and more O atoms from the (0001) face. In this competition, the former mechanism wins because it provides very low energy binding sites for O ions at face-centered-cubic registries on both surfaces. On the Zn-face, a distorted tetrahedral structure is formed, while on the O-face, a vertical Y structure is formed. In both structures, O ions form the topmost atomic plane. The reconstructed polar surfaces containing these novel structures have cleavage energy of 2.36 J/m 2 , comparable to that of nonpolar surfaces and in agreement with experimental observation. An earlier structure found on the Zn-face annealed at below 1000 K is stabilized mainly by the Madelung electrostatic force and is a metastable structure of that surface.

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Section: The Adc Reconstruction Model On the Zn-facementioning

confidence: 99%

Stabilizing forces acting on ZnO polar surfaces: STM, LEED, and DFT

Dong

Shi

et al. 2014

Phys. Rev. B

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“…[14][15][16][17] In the corresponding diffuse LEED patterns, diffraction intensity can be measured in the areas between the Bragg spots. This intensity arises from elastic scattering from a surface exhibiting structural elements lacking lateral translational symmetry.…”

Section: The ''Correct'' Algorithm For Diffuse Leedmentioning

confidence: 99%

Extending holographic LEED to ordered small-unit-cell superstructures

et al. 1998

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Following on the success of the recent application of holographic LEED to the determination of the threedimensional atomic geometry of Si adatoms on a SiC(111)p(3ϫ3) surface, which enabled that structure to be solved, we show in this paper that a similar technique allows the direct recovery of the local geometry of adsorbates forming superstructures as small as p(2ϫ2), even in the presence of a local substrate reconstruction. ͓S0163-1829͑98͒07928-4͔

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“…(5) leads to a well resolved atomic image, as displayed in three-dimensional perspective for K/Ni(100) and O/ Ni(100) in Fig. 5 top and bottom, respectively [28]. Of course, the beam splitting adatom, represented by an arti®cial atomic sphere, does not really show up in the reconstruction, but simply de®nes the coordinates' origin.…”

Section: Image Reconstruction From Multiple Energy Dleed Intensitiesmentioning

confidence: 97%