COLD ALCHEMI: IMPURITY ATOM SITE LOCATION AND THE TEMPERATURE DEPENDENCE OF DECHANNELLING.

John Spence, R. J. Graham, D. Shindo

Research output: Chapter in Book/Report/Conference proceedingConference contribution

11 Citations (Scopus)

Abstract

Recent applications of the 'Atom Location by Channelling Enhanced Microanalysis' (ALCHEMI) are summarised. This is a quantitative method for determining the sites of impurity atoms in crystals using an electron microscope and X-ray analysis system. Since the fractional site occupancies are given in terms of measured X-ray counts alone, it involves no adjustable parameters. New experiments have been performed on the temperature dependence of characteristic X-ray production under channelling conditions for InP and GaAs. We conclude that low temperatures will give more accurate results for 'ALCHEMI' in some materials due to the reduction in diffuse inelastic phonon scattering, and that the study of this temperature dependence may provide new information from small areas or particles on the correlations amongst atom motions due to thermal vibration.

Original languageEnglish (US)
Title of host publicationMaterials Research Society Symposia Proceedings
Place of PublicationPittsburgh, PA, USA
PublisherMaterials Research Soc
Pages153-162
Number of pages10
Volume62
ISBN (Print)0931837278
StatePublished - 1986

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Microanalysis
Impurities
Atoms
X ray production
Temperature
Inelastic scattering
Phonon scattering
X ray analysis
Electron microscopes
X rays
Crystals
Experiments

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Spence, J., Graham, R. J., & Shindo, D. (1986). COLD ALCHEMI: IMPURITY ATOM SITE LOCATION AND THE TEMPERATURE DEPENDENCE OF DECHANNELLING. In Materials Research Society Symposia Proceedings (Vol. 62, pp. 153-162). Pittsburgh, PA, USA: Materials Research Soc.

COLD ALCHEMI : IMPURITY ATOM SITE LOCATION AND THE TEMPERATURE DEPENDENCE OF DECHANNELLING. / Spence, John; Graham, R. J.; Shindo, D.

Materials Research Society Symposia Proceedings. Vol. 62 Pittsburgh, PA, USA : Materials Research Soc, 1986. p. 153-162.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Spence, J, Graham, RJ & Shindo, D 1986, COLD ALCHEMI: IMPURITY ATOM SITE LOCATION AND THE TEMPERATURE DEPENDENCE OF DECHANNELLING. in Materials Research Society Symposia Proceedings. vol. 62, Materials Research Soc, Pittsburgh, PA, USA, pp. 153-162.
Spence J, Graham RJ, Shindo D. COLD ALCHEMI: IMPURITY ATOM SITE LOCATION AND THE TEMPERATURE DEPENDENCE OF DECHANNELLING. In Materials Research Society Symposia Proceedings. Vol. 62. Pittsburgh, PA, USA: Materials Research Soc. 1986. p. 153-162
Spence, John ; Graham, R. J. ; Shindo, D. / COLD ALCHEMI : IMPURITY ATOM SITE LOCATION AND THE TEMPERATURE DEPENDENCE OF DECHANNELLING. Materials Research Society Symposia Proceedings. Vol. 62 Pittsburgh, PA, USA : Materials Research Soc, 1986. pp. 153-162
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