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Some new properties of deformed atomic clusters described in a projected spherical basis |
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| Authors: | AA Raduta E Garrido E Moya de Guerra |
| Institution: | (1) Department of Theoretical Physics, Bucharest University, Bucharest, POB MG11, Romania, RO;(2) Institute of Physics and Nuclear Engineering, Bucharest, POB MG6, Romania, RO;(3) Instituto de Estructura de la Materia, CSIC, Serrano 119-123, 28006 Madrid, Spain, ES |
| Abstract: | Some properties of small sodium clusters, comprising up to 45 atoms, are described using a projected spherical single particle basis. The variation of the cluster shape and inner density with the number of atoms is studied. Seemingly chestnut, clusterization and halo like structures are identified for several metallic clusters. Static polarizabilities and plasmon frequencies are calculated and compared with experimental data and with results obtained in different approaches. Received 28 November 2000 and Received in final form 15 February 2001 |
| Keywords: | PACS 36 40 -c Atomic and molecular clusters – 73 20 Mf Collective excitations (including excitons polarons plasmons and other charge-density excitations) |
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