2009/05/31 by Katherine Luna, Eun-Ah Kim, Paul Oreto +3
Chemistry · Physics and Astronomy · #Anomaly (physics) #Bilayer #Chemistry #Computer science #Condensed matter physics #Electron #Heterojunction #Interpretation (philosophy) #Materials science #Physics #Physics of Superconductivity and Magnetism #Quantum and electron transport phenomena #Quantum mechanics #Quantum tunnelling #Scanning tunneling microscope #Scanning tunneling spectroscopy #Semiconductor #Spin polarized scanning tunneling microscopy #Topological Materials and Phenomena #cond-mat.mes-hall
paper · pdf · doi:10.1103/physrevb.82.235317
published as Phys. Rev. B 82, 235317 (2010) · 4 pages, 2 figures
openalex publication_date 2010/12/15 · arxiv created 2011/01/03 · arxiv updated 2011/01/04 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study a theoretical model of virtual scanning tunneling microscopy (VSTM) [A. Sciambi, M. Pelliccione, M. Lilly, S. Bank, A. Gossard, L. Pfeiffer, K. West, and D. Goldhaber-Gordon, arXiv:1008.0668 (unpublished); A. Sciambi, M. Pelliccione, S. R. Bank, A. C. Gossard, and D. Goldhaber-Gordon, Appl. Phys. Lett. 97, 132103 (2010)]: a proposed application of interlayer tunneling in a bilayer system to locally probe a two-dimensional electron system (2DES) in a semiconductor heterostructure. We consider tunneling for the case where transport in the 2DESs is ballistic and show that the zero-bias anomaly is suppressed by extremely efficient screening. Since such an anomaly would complicate the interpretation of data from VSTM, this result is encouraging for efforts to implement such a microscopy technique.