التفاصيل البيبلوغرافية
| العنوان: |
From tunneling to contact in a magnetic atom: the non-equilibrium Kondo effect |
| المؤلفون: |
Choi, Deung-Jang, Abufager, Paula, Limot, Laurent, Lorente, Nicolas |
| المصدر: |
The Journal of Chemical Physics 146, 092309 (2017) |
| سنة النشر: |
2016 |
| المجموعة: |
Condensed Matter |
| مصطلحات موضوعية: |
Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Strongly Correlated Electrons |
| الوصف: |
A low-temperature scanning tunneling microscope was employed to study the differential conductance in an atomic junction formed by an adsorbed Co atom on a Cu(100) surface and a copper-covered tip. A zero-bias anomaly (ZBA) reveals spin scattering off the Co atom, which is assigned to a Kondo effect. The ZBA exhibits a characteristic asymmetric lineshape when electrons tunnel between tip and sample, while upon the tip-Co contact it symmetrizes and broadens. Through density functional theory calculations and the non-equilibrium non-crossing approximation we show that the lineshape broadening is mainly a consequence of the additional coupling to the tip, while non-equilibrium effects only modify the large-bias tails of the ZBA. |
| نوع الوثيقة: |
Working Paper |
| DOI: |
10.1063/1.4972874 |
| URL الوصول: |
http://arxiv.org/abs/1609.08955 |
| رقم الانضمام: |
edsarx.1609.08955 |
| قاعدة البيانات: |
arXiv |