| Issue |
EPL
Volume 92, Number 4, November 2010
|
|
|---|---|---|
| Article Number | 46003 | |
| Number of page(s) | 6 | |
| Section | Condensed Matter: Structural, Mechanical and Thermal Properties | |
| DOI | https://doi.org/10.1209/0295-5075/92/46003 | |
| Published online | 06 December 2010 | |
Selecting the tip electron orbital for scanning tunneling microscopy imaging with sub-ångström lateral resolution
1
Institute of Solid State Physics RAS - Chernogolovka, Moscow district 142432, Russia
2
Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN), School of Physics, Trinity College Dublin - Dublin 2, Ireland, EU
Received:
17
August
2010
Accepted:
27
October
2010
We report on scanning tunneling microscopy (STM) studies performed with single crystalline W[001] tips on a graphite(0001) surface. Results of distance-dependent STM experiments with sub-ångström lateral resolution and density functional theory electronic structure calculations show how to controllably select one of the tip electron orbitals for high-resolution STM imaging. This is confirmed by experimental images reproducing the shape of the 5dxz, yz and 5dx2−y2 tungsten atomic orbitals. The presented data demonstrate that the application of oriented single crystalline probes can provide further control of spatial resolution and expand the capabilities of STM.
PACS: 68.37.Ef – Scanning tunneling microscopy (including chemistry induced with STM) / 73.40.Gk – Tunneling / 73.20.At – Surface states, band structure, electron density of states
© EPLA, 2010
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.