Direct imaging of the two-dimensional Fermi contour: Fourier-transform STM

L. Petersen; P. T. Sprunger; Ph. Hofmann; E. Lægsgaard; B. G. Briner; M. Doering; H.-P. Rust; A. M. Bradshaw; F. Besenbacher; E. W. Plummer

doi:10.1103/PhysRevB.57.R6858

Rapid Communication

Direct imaging of the two-dimensional Fermi contour: Fourier-transform STM

L. Petersen, P. T. Sprunger, Ph. Hofmann, E. Lægsgaard, B. G. Briner, M. Doering, H.-P. Rust, A. M. Bradshaw, F. Besenbacher, and E. W. Plummer

Phys. Rev. B 57, R6858(R) – Published 15 March 1998

Abstract

Direct images of the two-dimensional Fermi contour at a surface can be generated by a Fourier transform (FT) of scanning tunneling microscopy (STM) images taken at low-bias voltages. The origins of the Fermi contour in the FT are the standing waves of electrons near the Fermi energy caused by defects in the surface. Several examples of FT-STM are presented to illustrate the simplicity of this technique. The advantages and limitations of this Fermi contour imaging technique are discussed.

Received 10 December 1997

DOI:https://doi.org/10.1103/PhysRevB.57.R6858

Authors & Affiliations

L. Petersen

Institute of Physics and Astronomy and Center for Atomic-Scale Materials Physics, University of Aarhus, DK 8000 Aarhus C, Denmark

P. T. Sprunger

Institute of Physics and Astronomy and Center for Atomic-Scale Materials Physics, University of Aarhus, DK 8000 Aarhus C, Denmark
Center for Advanced Microstructures and Devices, Louisiana State University, Baton Rouge, Louisiana 70803

Ph. Hofmann^*

Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37996-1200
Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6057

E. Lægsgaard

Institute of Physics and Astronomy and Center for Atomic-Scale Materials Physics, University of Aarhus, DK 8000 Aarhus C, Denmark

B. G. Briner, M. Doering, H.-P. Rust, and A. M. Bradshaw

Fritz-Haber-Institut der Max-Planck-Gesellschaft, Faradayweg 4-6, 14195 Berlin, Germany

F. Besenbacher

Institute of Physics and Astronomy and Center for Atomic-Scale Materials Physics, University of Aarhus, DK 8000 Aarhus C, Denmark

E. W. Plummer

Department of Physics and Astronomy, The University of Tennessee, Knoxville, Tennessee 37996-1200
Solid State Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831-6057

^*Present address: Fritz-Haber-Institut der Max-Planck-Gesellschaft, Berlin, Germany.

References (Subscription Required)

Click to Expand

Issue

Vol. 57, Iss. 12 — 15 March 1998

Reuse & Permissions

Access Options

Author publication services for translation and copyediting assistance advertisement

Physical Review B

covering condensed matter and materials physics