| Article | |
| Report number | CERN-OPEN-2001-013 |
| Title | Local O$_{\delta}$ probing in the high-$T_{C}$ superconductor HgBa$_{2}$CuO$_{4+\delta}$ |
| Author(s) |
Correia, J G (CERN) ; Capponi, J J (Laboratoire de Cristallographie, CNRS) ; Ctortecka, B (Univ. Leipzig) ; Butz, T (Univ Leipzig) ; Tröger, W (Univ. Leipzig) ; Araújo, J P (IFIMUP, Departamento de Física) ; Loureiro, S M (Princeton Univ.) ; Toulemonde, P (Laboratoire de Cristallographie, CNRS) ; Gatt, R (Univ. of Illinois) ; Le Floc'h, S (Laboratoire de Cristallographie, CNRS) ; Bordet, P (Laboratoire de Cristallographie, CNRS) |
| Publication | 2000 |
| Imprint | 27 Oct 1999 |
| Number of pages | 7 |
| In: | Phys. Rev. B 61 (2000) 11769-11775 |
| DOI | 10.1103/PhysRevB.61.11769 |
| Subject category | Condensed Matter |
| Accelerator/Facility, Experiment | CERN ISOLDE ; IS360 |
| Abstract | Electric-field gradients on mercury sites of the HgBa$_{2}$CuO$_{4+\delta}$ high-$T_{C}$ superconductor were measured with the perturbed angular correlation technique and interpreted with $\textit{ab initio}$ calculations. Under oxygen annealing, an asymmetric electric-field gradient has been assigned to the presence of single oxygen atoms, O$_{\delta}$ , which are located in the Hg planes. These experiments provide an atomic scale tool for studying charge-density variations occuring in the neighborhood of the Hg atoms, which can be induced, particularly, by pointlike defects. |
Corresponding record in: Inspire
Email contact: [email protected]
Record created 2001-02-15, last modified 2018-09-24
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