Selecting the tip electron orbital for scanning tunneling microscopy imaging with sub-?ngstrom lateral resolution
File Type:
PDFItem Type:
Journal ArticleDate:
2010Citation:
A. N. Chaika, S. S. Nazin, V. N. Semenov, S. I. Bozhko, O. Lubben, S. A. Krasnikov, K. Radican and I. V. Shvets, Selecting the tip electron orbital for scanning tunneling microscopy imaging with sub-?ngstrom lateral resolution, EPL (Europhysics Letters), 92, 4, 2010, 6Download Item:
Selecting the tip electron orbital for scanning tunneling microscopy imaging with sub-?ngstrom lateral resolution.pdf (Published (publisher's copy) - Peer Reviewed) 1.347Mb
Abstract:
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-?ngstrom 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.
Author's Homepage:
http://people.tcd.ie/ivchvetshttp://people.tcd.ie/bozhkos
http://people.tcd.ie/krasniks
Description:
PUBLISHEDPublisher:
Institute of PhysicsType of material:
Journal ArticleCollections:
Series/Report no:
EPL (Europhysics Letters);92;
4;
Availability:
Full text availableKeywords:
Particles and fields physics, sub-?ngstromLicences: