Skip to main content Accessibility help
×
×
Home

Atomic Scale Structure and Chemistry of Interfaces by Z-Contrast Imaging and Electron Energy Loss Spectroscopy in the Stem

  • M. M. McGibbon (a1), N. D. Browning (a1), M. F. Chisholm (a1), A. J. McGibbon (a1), S. J. Pennycook (a1), V. Ravikumar (a2) and V. P. Dravid (a2)...

Abstract

The macroscopic properties of many materials are controlled by the structure and chemistry at grain boundaries. A basic understanding of the structure-property relationship requires a technique which probes both composition and chemical bonding on an atomic scale. High-resolution Z-contrast imaging in the scanning transmission electron microscope (STEM) forms an incoherent image in which changes in atomic structure and composition across an interface can be interpreted directly without the need for preconceived atomic structure models (1). Since the Z-contrast image is formed by electrons scattered through high angles, parallel detection electron energy loss spectroscopy (PEELS) can be used simultaneously to provide complementary chemical information on an atomic scale (2). The fine structure in the PEEL spectra can be used to investigate the local electronic structure and the nature of the bonding across the interface (3). In this paper we use the complimentary techniques of high resolution Zcontrast imaging and PEELS to investigate the atomic structure and chemistry of a 25° symmetric tilt boundary in a bicrystal of the electroceramic SrTiO3.

Copyright

References

Hide All
(1) Pennycook, S.J. and Jesson, D.E., Phys.Rev.Lett, 64, 938, (1990)
(2) Browning, N.D., et al Nature, 366, 143 (1993)
(3) Batson, P.E., Nature, 366,727 (1993)
(4) Pennycook, S.J. and Jesson, D.E., Ultramicroscopy, 37, 14, (1991)
(5) Pennycook, S.J., Annu. Rev. Mater. Sci., 22, 171, (1992)
(6) Pennycook, S.J., Contemp.Phys, 23, 371 (1982)
(7) Browning, N.D. and Pennycook, S.J., Microbeam Analysis, 2, 81, (1993)
(8) Batson, P.E., Ultramicroscopy, 47, 133 (1992)
(9) Gull, S.F. and Skilling, J., IEE Proc, 13IF, 646 (1984)
(10) Grunes, L.A. et al, Phys.Rev.B, 25, 7157 (1982)
(11) Brydson, R., Sauer, H. and Engel, W., Transmission Electron Energy Loss Spectrometry in Materials Science (The Minerals, Metals and Materials Society) 1992
(12) Paterson, J.H. and Krivanek, O.L., Ultramicroscopy, 32, 319 (1990)
(13) Otten, M.T. et al, Ultramicroscopy, 18, 285, (1985)
(14) Brydson, R. et al, J.Phys:Condens.Matter, 4, 3429 (1992)
(15) Altermatt, D. and Brown, I.D., Acta Cryst, B41, 240 (1985)
(16) Brown, I.D. and Altermatt, D., Acta Cryst, B41, 244 (1985)
Recommend this journal

Email your librarian or administrator to recommend adding this journal to your organisation's collection.

MRS Online Proceedings Library (OPL)
  • ISSN: -
  • EISSN: 1946-4274
  • URL: /core/journals/mrs-online-proceedings-library-archive
Please enter your name
Please enter a valid email address
Who would you like to send this to? *
×

Metrics

Full text views

Total number of HTML views: 0
Total number of PDF views: 0 *
Loading metrics...

Abstract views

Total abstract views: 0 *
Loading metrics...

* Views captured on Cambridge Core between <date>. This data will be updated every 24 hours.

Usage data cannot currently be displayed