تقرير
Itinerant Nature of Atom-Magnetization Excitation by Tunneling Electrons
| العنوان: | Itinerant Nature of Atom-Magnetization Excitation by Tunneling Electrons |
|---|---|
| المؤلفون: | Khajetoorians, Alexander Ako, Lounis, Samir, Chilian, Bruno, Costa, Antonio T., Zhou, Lihui, Mills, Douglas L., Wiebe, Jens, Wiesendanger, Roland |
| سنة النشر: | 2010 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science |
| الوصف: | We have performed single-atom magnetization curve (SAMC) measurements and inelastic scanning tunneling spectroscopy (ISTS) on individual Fe atoms on a Cu(111) surface. The SAMCs show a broad distribution of magnetic moments with $\unit[3.5]{\mu_{\rm B}}$ being the mean value. ISTS reveals a magnetization excitation with a lifetime of $\unit[200]{fsec}$ which decreases by a factor of two upon application of a magnetic field of $\unit[12]{T}$. The experimental observations are quantitatively explained by the decay of the magnetization excitation into Stoner modes of the itinerant electron system as shown by newly developed theoretical modeling. Comment: 3 Figures, Supplement not included, updated version after revision |
| نوع الوثيقة: | Working Paper |
| URL الوصول: | http://arxiv.org/abs/1010.1284 |
| رقم الأكسشن: | edsarx.1010.1284 |
| قاعدة البيانات: | arXiv |
| الوصف غير متاح. |