Charge defects glowing in the dark
We investigate the effects of local charge defects in HREM imaging, using electron densities calculated by density functional methods. As a model of a planar interface with a local charge defect we use the polar MgO square root (111)-3 x 3R30 degrees surface, which has an additional hole per surface unit cell. A complimentary example, the non-polar MgO (100) surface that has no local charge defect is simulated for comparison. We show that the contrast due to local charge defects is rather high, and suggest that they should be directly observable.
| Medienart: |
Artikel |
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| Erscheinungsjahr: |
2007 |
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| Erschienen: |
2007 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:107 |
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| Enthalten in: |
Ultramicroscopy - 107(2007), 4-5 vom: 31. Apr., Seite 374-81 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Deng, Bin [VerfasserIn] |
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| Themen: |
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| Anmerkungen: |
Date Completed 13.03.2007 Date Revised 29.01.2007 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
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| Förderinstitution / Projekttitel: |
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| PPN (Katalog-ID): |
NLM166820547 |
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| 245 | 1 | 0 | |a Charge defects glowing in the dark |
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| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a We investigate the effects of local charge defects in HREM imaging, using electron densities calculated by density functional methods. As a model of a planar interface with a local charge defect we use the polar MgO square root (111)-3 x 3R30 degrees surface, which has an additional hole per surface unit cell. A complimentary example, the non-polar MgO (100) surface that has no local charge defect is simulated for comparison. We show that the contrast due to local charge defects is rather high, and suggest that they should be directly observable | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Marks, Laurence D |e verfasserin |4 aut | |
| 700 | 1 | |a Rondinelli, James M |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Ultramicroscopy |d 1987 |g 107(2007), 4-5 vom: 31. Apr., Seite 374-81 |w (DE-627)NLM000304131 |x 1879-2723 |7 nnns |
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