This title appears in the Scientific Report :
2011
Please use the identifier:
http://hdl.handle.net/2128/10949 in citations.
Please use the identifier: http://dx.doi.org/10.1103/PhysRevB.83.035427 in citations.
Theory of real space imaging of Fermi surface parts
Theory of real space imaging of Fermi surface parts
A scanning tunneling microscope can be used to visualize in real space effects provided by Fermi surfaces with buried impurities far below substrates acting as local probes [Weismann et al. Science 323, 1190 (2009)]. After scattering at buried impurities, anisotropic electronic wave oscillations are...
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Personal Name(s): | Lounis, S. |
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Zahn, P. / Weismann, A. / Wenderoth, M. / Ulbrich, R. G. / Mertig, I. / Dederichs, P. H. / Blügel, S. | |
Contributing Institute: |
Jülich-Aachen Research Alliance - Simulation Sciences; JARA-SIM JARA-FIT; JARA-FIT Quanten-Theorie der Materialien; IAS-1 Quanten-Theorie der Materialien; PGI-1 Theoretische Nanoelektronik; PGI-2 Theoretische Nanoelektronik; IAS-3 |
Published in: | Physical Review B Physical review / B, 83 83 (2011 2011) 3 3, S. 035427 035427 |
Imprint: |
College Park, Md.
APS
2011
|
Physical Description: |
35427 |
DOI: |
10.1103/PhysRevB.83.035427 |
Document Type: |
Journal Article |
Research Program: |
Grundlagen für zukünftige Informationstechnologien |
Series Title: |
Physical Review B
83 |
Subject (ZB): | |
Link: |
Get full text OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1103/PhysRevB.83.035427 in citations.
A scanning tunneling microscope can be used to visualize in real space effects provided by Fermi surfaces with buried impurities far below substrates acting as local probes [Weismann et al. Science 323, 1190 (2009)]. After scattering at buried impurities, anisotropic electronic wave oscillations are observed on the surface as hot spots: The experiments exhibit strongly enhanced intensities in certain directions and much weaker intensities in other directions. A theory describing these features is developed based on the stationary phase approximation for the Friedel oscillations and taking into account the band structure of the host material. It is demonstrated how the Fermi surface of a material, for instance, through Fermi contours' critical points, acts as a mirror focusing electrons that scatter at hidden impurities which allow the projection of parts of the Fermi surface, a quantity defined in reciprocal space, onto real space. |