Cargando…
Local probing of Hg neighboorhood in HgBa$_{2}$CuO$_{4+\delta}$
Electric field gradients (EFG) on mercury sites of the Hg1201 high-TC superconductors were measured with the perturbed angular correlation (PAC) technique. In Hg1201 samples where PAC detects higher oxygen content the EFGs have decreased to lower values indicating an elongation of the Hg-apical oxyg...
| Autores principales: | , , , , , , , , , , , , , |
|---|---|
| Lenguaje: | eng |
| Publicado: |
2000
|
| Materias: | |
| Acceso en línea: | http://cds.cern.ch/record/487199 |
| _version_ | 1780896969131032576 |
|---|---|
| author | Correia, J G Araújo, J P Loureiro, S M Toulemonde, P Le Floc'h, S Bordet, P Capponi, J J Gatt, R Tröger, W Ctortecka, B Butz, T Haas, H Marques, J G Soares, J C |
| author_facet | Correia, J G Araújo, J P Loureiro, S M Toulemonde, P Le Floc'h, S Bordet, P Capponi, J J Gatt, R Tröger, W Ctortecka, B Butz, T Haas, H Marques, J G Soares, J C |
| author_sort | Correia, J G |
| collection | CERN |
| description | Electric field gradients (EFG) on mercury sites of the Hg1201 high-TC superconductors were measured with the perturbed angular correlation (PAC) technique. In Hg1201 samples where PAC detects higher oxygen content the EFGs have decreased to lower values indicating an elongation of the Hg-apical oxygen dumb-bell. On the same samples the asymmetry parameter of the EFG becomes non-zero below 100 K, showing that the charge distribution near the Hg-apical oxygen chain becomes non-axially symmetric at low temperature. |
| id | cern-487199 |
| institution | Organización Europea para la Investigación Nuclear |
| language | eng |
| publishDate | 2000 |
| record_format | invenio |
| spelling | cern-4871992019-09-30T06:29:59Zhttp://cds.cern.ch/record/487199engCorreia, J GAraújo, J PLoureiro, S MToulemonde, PLe Floc'h, SBordet, PCapponi, J JGatt, RTröger, WCtortecka, BButz, THaas, HMarques, J GSoares, J CLocal probing of Hg neighboorhood in HgBa$_{2}$CuO$_{4+\delta}$Condensed MatterElectric field gradients (EFG) on mercury sites of the Hg1201 high-TC superconductors were measured with the perturbed angular correlation (PAC) technique. In Hg1201 samples where PAC detects higher oxygen content the EFGs have decreased to lower values indicating an elongation of the Hg-apical oxygen dumb-bell. On the same samples the asymmetry parameter of the EFG becomes non-zero below 100 K, showing that the charge distribution near the Hg-apical oxygen chain becomes non-axially symmetric at low temperature.CERN-OPEN-2001-017oai:cds.cern.ch:4871992000-02-02 |
| spellingShingle | Condensed Matter Correia, J G Araújo, J P Loureiro, S M Toulemonde, P Le Floc'h, S Bordet, P Capponi, J J Gatt, R Tröger, W Ctortecka, B Butz, T Haas, H Marques, J G Soares, J C Local probing of Hg neighboorhood in HgBa$_{2}$CuO$_{4+\delta}$ |
| title | Local probing of Hg neighboorhood in HgBa$_{2}$CuO$_{4+\delta}$ |
| title_full | Local probing of Hg neighboorhood in HgBa$_{2}$CuO$_{4+\delta}$ |
| title_fullStr | Local probing of Hg neighboorhood in HgBa$_{2}$CuO$_{4+\delta}$ |
| title_full_unstemmed | Local probing of Hg neighboorhood in HgBa$_{2}$CuO$_{4+\delta}$ |
| title_short | Local probing of Hg neighboorhood in HgBa$_{2}$CuO$_{4+\delta}$ |
| title_sort | local probing of hg neighboorhood in hgba$_{2}$cuo$_{4+\delta}$ |
| topic | Condensed Matter |
| url | http://cds.cern.ch/record/487199 |
| work_keys_str_mv | AT correiajg localprobingofhgneighboorhoodinhgba2cuo4delta AT araujojp localprobingofhgneighboorhoodinhgba2cuo4delta AT loureirosm localprobingofhgneighboorhoodinhgba2cuo4delta AT toulemondep localprobingofhgneighboorhoodinhgba2cuo4delta AT leflochs localprobingofhgneighboorhoodinhgba2cuo4delta AT bordetp localprobingofhgneighboorhoodinhgba2cuo4delta AT capponijj localprobingofhgneighboorhoodinhgba2cuo4delta AT gattr localprobingofhgneighboorhoodinhgba2cuo4delta AT trogerw localprobingofhgneighboorhoodinhgba2cuo4delta AT ctorteckab localprobingofhgneighboorhoodinhgba2cuo4delta AT butzt localprobingofhgneighboorhoodinhgba2cuo4delta AT haash localprobingofhgneighboorhoodinhgba2cuo4delta AT marquesjg localprobingofhgneighboorhoodinhgba2cuo4delta AT soaresjc localprobingofhgneighboorhoodinhgba2cuo4delta |