The complex superstructure in Mg1-xAlxB2 at x approximate to 0.5
Electron diffraction and high resolution microscopy have been performed on Mg1-xAlxB2 with x≅0.5. This composition displays a superstructure with a repeat period of exactly 2c along the c-axis and about 10 nm in the a-b plane. The superstructure results in ring-shaped superreflections in the diffrac...
| Main Authors: | , , , , , |
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| Format: | Journal article |
| Language: | English |
| Published: |
2002
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| _version_ | 1797055022122401792 |
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| author | Zandbergen, H Wu, M Jiang, H Hayward, M Haas, M Cava, R |
| author_facet | Zandbergen, H Wu, M Jiang, H Hayward, M Haas, M Cava, R |
| author_sort | Zandbergen, H |
| collection | OXFORD |
| description | Electron diffraction and high resolution microscopy have been performed on Mg1-xAlxB2 with x≅0.5. This composition displays a superstructure with a repeat period of exactly 2c along the c-axis and about 10 nm in the a-b plane. The superstructure results in ring-shaped superreflections in the diffraction pattern. Irradiation by a strong electron beam results in a loss of the superstructure and a decrease of about 1% in the c lattice parameter. In situ heating and cooling on the other hand showed that the superstructure is stable from 100 to 700 K. Possible origins for the superstructure are proposed. © 2002 Published by Elsevier Science B.V. |
| first_indexed | 2024-03-06T19:05:35Z |
| format | Journal article |
| id | oxford-uuid:1500973a-cbf6-46f2-a847-2d400daa0822 |
| institution | University of Oxford |
| language | English |
| last_indexed | 2024-03-06T19:05:35Z |
| publishDate | 2002 |
| record_format | dspace |
| spelling | oxford-uuid:1500973a-cbf6-46f2-a847-2d400daa08222022-03-26T10:23:08ZThe complex superstructure in Mg1-xAlxB2 at x approximate to 0.5Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:1500973a-cbf6-46f2-a847-2d400daa0822EnglishSymplectic Elements at Oxford2002Zandbergen, HWu, MJiang, HHayward, MHaas, MCava, RElectron diffraction and high resolution microscopy have been performed on Mg1-xAlxB2 with x≅0.5. This composition displays a superstructure with a repeat period of exactly 2c along the c-axis and about 10 nm in the a-b plane. The superstructure results in ring-shaped superreflections in the diffraction pattern. Irradiation by a strong electron beam results in a loss of the superstructure and a decrease of about 1% in the c lattice parameter. In situ heating and cooling on the other hand showed that the superstructure is stable from 100 to 700 K. Possible origins for the superstructure are proposed. © 2002 Published by Elsevier Science B.V. |
| spellingShingle | Zandbergen, H Wu, M Jiang, H Hayward, M Haas, M Cava, R The complex superstructure in Mg1-xAlxB2 at x approximate to 0.5 |
| title | The complex superstructure in Mg1-xAlxB2 at x approximate to 0.5 |
| title_full | The complex superstructure in Mg1-xAlxB2 at x approximate to 0.5 |
| title_fullStr | The complex superstructure in Mg1-xAlxB2 at x approximate to 0.5 |
| title_full_unstemmed | The complex superstructure in Mg1-xAlxB2 at x approximate to 0.5 |
| title_short | The complex superstructure in Mg1-xAlxB2 at x approximate to 0.5 |
| title_sort | complex superstructure in mg1 xalxb2 at x approximate to 0 5 |
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