Academic Journal
Secondary-electron emission induced by in vacuo surface excitations near a polycrystalline Al surface
| العنوان: | Secondary-electron emission induced by in vacuo surface excitations near a polycrystalline Al surface |
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| المؤلفون: | Werner, Wolfgang S. M., Salvat-Pujol, Francesc, Bellissimo, Alessandra, Khalid, Rahila, Smekal, Werner, Novák, Mihály, Ruocco, Alessandro, Stefani, Giovanni |
| سنة النشر: | 2013 |
| المجموعة: | Istituto Nazionale di Fisica Nucleare (INFN): Open Access Repository |
| مصطلحات موضوعية: | Energy Research, Condensed Matter Physics, Electronic, Optical and Magnetic Materials |
| الوصف: | The double-differential spectrum of coincidences between backscattered electrons and secondary electrons (SEs) emitted from a polycrystalline Al surface bombarded with 100-eV electrons was measured. For energy losses of the scattered electron in between the work function of Al and the bulk plasmon energy, a sharp peak is observed in the SE spectra, corresponding to ejection of a single electron near the Fermi edge receiving the full energy loss and momentum of the primary electron. This process predominantly takes place when the primary electron suffers a surface energy loss in vacuum, and leads to SE ejection from the very surface. At energy losses just above the bulk plasmon energy, a sharp transition is observed, corresponding to a sudden increase in the depth of ejection. The latter is a direct consequence of the complementarity of surface and bulk plasmons, the so-called Begrenzungs effect. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | url:https://www.openaccessrepository.it/communities/itmirror; https://www.openaccessrepository.it/record/139213 |
| DOI: | 10.1103/physrevb.88.201407 |
| الاتاحة: | https://www.openaccessrepository.it/record/139213 https://doi.org/10.1103/physrevb.88.201407 |
| Rights: | info:eu-repo/semantics/openAccess ; http://www.opendefinition.org/licenses/cc-by |
| رقم الانضمام: | edsbas.D8CB65F |
| قاعدة البيانات: | BASE |
| DOI: | 10.1103/physrevb.88.201407 |
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