Scanning tunneling spectroscopy of magnetic bulk impurities : from a single Kondo atom towards a coupled system /
محفوظ في:
| المؤلف الرئيسي: | |
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| الشكل: | الكتروني كتاب الكتروني |
| اللغة: | الإنجليزية |
| منشور في: |
Cham :
Springer,
[2014].
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| السلاسل: | Springer theses,
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| الموضوعات: | |
| الوسوم: |
إضافة وسم
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جدول المحتويات:
- Supervisors' Foreword; Contents; Abbreviations and Symbols; 1 Introduction; References; 2 Experimental Setup and Background; 2.1 ... Sample Preparation; 2.1.1 UHV Preparation Chamber; 2.1.2 Single Crystal Preparation and Characterization; 2.1.3 Sample Holder; 2.1.4 Argon Sputtering; 2.1.5 Annealing; 2.1.6 Substrate Characterization; 2.1.7 Epitaxy of Diluted Cu Films; 2.1.8 Co in Cu(100); 2.1.9 Fe in Cu(100); 2.1.10 Ag in Cu(100); 2.2 ... Scanning Tunneling Microscopy; 2.2.1 Standard STM Theory; 2.2.2 Constant Current Topography; 2.2.3 Multi-bias Topographies; 2.2.4 dI/dV Spectroscopy.
- 2.2.5 Lock-in Technique2.2.6 Basic Principle; 2.2.7 Data Processing; 2.2.8 STS Normalization; References; 3 Investigation of Sub-surface Atoms by STM; 3.1 ... Imaging Buried Impurities; 3.1.1 Electron Focusing Effect; 3.1.2 Oscillation Wave Length; 3.1.3 Impact of the Surface; 3.1.4 The Cu(100) Surface; 3.2 ... Extracting the Impurity Position Below the Surface; References; 4 Kondo Physics of Single Sub-surface Atoms; 4.1 ... State of the Art; 4.2 ... Long-Range Kondo Signature of a Single Magnetic Atom; 4.3 ... The Vicinity of an Kondo Impurity; 4.3.1 Friedel Oscillation: The Impact of the Band Structure.
- 4.3.2 Model of Resonant Scattering: A Kondo Impurity4.4 ... Simulation; 4.5 ... Phenomenological Fit Formula; 4.6 ... Microscopic Parameters of Iron and Cobalt Atoms; 4.7 ... Distance Dependence of the Kondo Signature; 4.7.1 Lateral Dependence; 4.7.2 Dependence on the Impurity Position Below the Surface; 4.8 ... Spatial Dependence of the Kondo Temperature; 4.9 ... Discussion; References; 5 Signatures of Non-magnetic Atoms; 5.1 ... Topographic Investigation; 5.2 ... Voltage Dependence of the Interference Pattern; 5.2.1 Comparison with Magnetic Impurities; 5.3 ... Signatures Around the Fermi Energy; 5.4 ... Summary; References.
- 6 Two-Impurity Kondo Physics6.1 ... The Two-Impurity Kondo Model; 6.1.1 Fundamentals; 6.1.2 Competing Effects; 6.2 ... Characterization of Fe Dimers; 6.3 ... Comparison with Theoretical Results; 6.4 ... Conclusion; References; 7 Outlook; References; 8 Summary; Appendix.