The surface chemistry of Hg-containing superconductors by HREM
The surface chemistry of Hg-containing superconductors has been investigated using high resolution electron Microscopy. It was found that the crystal surface of these materials usually decomposed in air by losing Hg, forming a thin amorphous layer containing Ba and Cu. This amorphous layer can be re...
| Main Authors: | , , , , , , , |
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| Format: | Conference item |
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1997
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| _version_ | 1797062472715206656 |
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| author | Zhou, W Panagopoulos, C Lee, E Hodges, J Peacock, G Asab, A Gameson, I Edwards, P |
| author_facet | Zhou, W Panagopoulos, C Lee, E Hodges, J Peacock, G Asab, A Gameson, I Edwards, P |
| author_sort | Zhou, W |
| collection | OXFORD |
| description | The surface chemistry of Hg-containing superconductors has been investigated using high resolution electron Microscopy. It was found that the crystal surface of these materials usually decomposed in air by losing Hg, forming a thin amorphous layer containing Ba and Cu. This amorphous layer can be recrystallised into some crystallites of barium cuprate under the electron beam annealing. Such recrystallisation did not take place on the surface of Re-doped Hg-1201. Crystals decomposed heavily when they were ground in solvents. A surface dependence of the low temperature low field magnetic susceptibility of Hg-1201 was also observed. |
| first_indexed | 2024-03-06T20:46:03Z |
| format | Conference item |
| id | oxford-uuid:35f1e15c-a057-4e26-aef5-76b7a9de0e2e |
| institution | University of Oxford |
| last_indexed | 2024-03-06T20:46:03Z |
| publishDate | 1997 |
| record_format | dspace |
| spelling | oxford-uuid:35f1e15c-a057-4e26-aef5-76b7a9de0e2e2022-03-26T13:34:50ZThe surface chemistry of Hg-containing superconductors by HREMConference itemhttp://purl.org/coar/resource_type/c_5794uuid:35f1e15c-a057-4e26-aef5-76b7a9de0e2eSymplectic Elements at Oxford1997Zhou, WPanagopoulos, CLee, EHodges, JPeacock, GAsab, AGameson, IEdwards, PThe surface chemistry of Hg-containing superconductors has been investigated using high resolution electron Microscopy. It was found that the crystal surface of these materials usually decomposed in air by losing Hg, forming a thin amorphous layer containing Ba and Cu. This amorphous layer can be recrystallised into some crystallites of barium cuprate under the electron beam annealing. Such recrystallisation did not take place on the surface of Re-doped Hg-1201. Crystals decomposed heavily when they were ground in solvents. A surface dependence of the low temperature low field magnetic susceptibility of Hg-1201 was also observed. |
| spellingShingle | Zhou, W Panagopoulos, C Lee, E Hodges, J Peacock, G Asab, A Gameson, I Edwards, P The surface chemistry of Hg-containing superconductors by HREM |
| title | The surface chemistry of Hg-containing superconductors by HREM |
| title_full | The surface chemistry of Hg-containing superconductors by HREM |
| title_fullStr | The surface chemistry of Hg-containing superconductors by HREM |
| title_full_unstemmed | The surface chemistry of Hg-containing superconductors by HREM |
| title_short | The surface chemistry of Hg-containing superconductors by HREM |
| title_sort | surface chemistry of hg containing superconductors by hrem |
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