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1 See also  




2 References  













Grazing incidence diffraction






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From Wikipedia, the free encyclopedia
  

Grazing incidence diffraction geometry. The angle of incidence, α, is close to the critical angle for the sample. The beam is diffracted in the plane of the surface of the sample by the angle 2θ, and often also out of the plane.

Grazing incidence diffraction (GID) is a technique for interrogating a material using small incidence angles for an incoming wave, often leading to the diffraction being surface sensitive. It occurs in many different areas:

  • Surface X-ray diffraction (SXRD), which is similar to RHEED but uses X-rays, and is also used to interrogate surface structure.[3]
  • X-ray standing waves, another X-ray variant where the intensity decay into a sample from diffraction is used to analyze chemistry.[4]
  • Grazing-incidence small-angle scattering (GISAS) a hybrid approach using small scattering (diffraction) angles with X-rays or neutrons.[5]
  • X-ray reflectivity, yet another related technique, but here the intensity of the specular reflected beam is measured.[6][7][8]
  • Grazing incidence atom scattering,[9][10] where the fact that atoms (and ions) can also be waves is used to diffract from surfaces.
  • Quantum reflection, where very low kinetic energy atoms or molecules are diffracted (reflected) from surfaces.[11]
  • Evanescent waves, which occur with all of the above and also photons where there is no flow of energy into the material.

    • More details and citations on these can be found in the links provided above.

    See also[edit]

    References[edit]

    1. ^ Ichimiya, Ayahiko; Cohen, Philip (2004). Reflection high-energy electron diffraction. Cambridge, U.K.: Cambridge University Press. ISBN 0-521-45373-9. OCLC 54529276.
  • ^ Braun, Wolfgang (1999). Applied RHEED : reflection high-energy electron diffraction during crystal growth. Berlin: Springer. ISBN 3-540-65199-3. OCLC 40857022.
  • ^ Feidenhans'l, R. (1989). "Surface structure determination by X-ray diffraction". Surface Science Reports. 10 (3). Elsevier BV: 105–188. doi:10.1016/0167-5729(89)90002-2. ISSN 0167-5729.
  • ^ B. W. Batterman and H. Cole (1964). "Dynamical Diffraction of X Rays by Perfect Crystals". Reviews of Modern Physics. 36 (3): 681. doi:10.1103/RevModPhys.36.681.
  • ^ Levine, J. R.; Cohen, J. B.; Chung, Y. W.; Georgopoulos, P. (1989-12-01). "Grazing-incidence small-angle X-ray scattering: new tool for studying thin film growth". Journal of Applied Crystallography. 22 (6). International Union of Crystallography (IUCr): 528–532. doi:10.1107/s002188988900717x. ISSN 0021-8898.
  • ^ J. Als-Nielsen, D. McMorrow, Elements of Modern X-Ray Physics, Wiley, New York, (2001).
  • ^ J. Daillant, A. Gibaud, X-Ray and Neutron Reflectivity: Principles and Applications. Springer, (1999).
  • ^ M. Tolan, X-Ray Scattering from Soft-Matter Thin Films, Springer, (1999).
  • ^ Khemliche, H.; Rousseau, P.; Roncin, P.; Etgens, V. H.; Finocchi, F. (2009). "Grazing incidence fast atom diffraction: An innovative approach to surface structure analysis". Applied Physics Letters. 95 (15): 151901. doi:10.1063/1.3246162. ISSN 0003-6951.
  • ^ Bundaleski, N.; Khemliche, H.; Soulisse, P.; Roncin, P. (2008). "Grazing Incidence Diffraction of keV Helium Atoms on a Ag(110) Surface". Physical Review Letters. 101 (17). doi:10.1103/physrevlett.101.177601. ISSN 0031-9007.
  • ^ Shimizu, Fujio (2001). "Specular Reflection of Very Slow Metastable Neon Atoms from a Solid Surface". Physical Review Letters. 86 (6): 987–990. doi:10.1103/PhysRevLett.86.987. ISSN 0031-9007.


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