Display options
Cite
Vonau F, Aubel D, Gewinner G, et al. Evidence of hole-electron quasiparticle interference in ErSi2 semimetal by Fourier-transform scanning tunneling spectroscopy. Phys Rev Lett. 2005;95(17):176803doi: 10.1103/PhysRevLett.95.176803.
Vonau, F., Aubel, D., Gewinner, G., Zabrocki, S., Peruchetti, J. C., Bolmont, D., & Simon, L. (2005). Evidence of hole-electron quasiparticle interference in ErSi2 semimetal by Fourier-transform scanning tunneling spectroscopy. Physical review letters, 95(17), 176803. https://doi.org/10.1103/PhysRevLett.95.176803
Vonau, F, et al. "Evidence of hole-electron quasiparticle interference in ErSi2 semimetal by Fourier-transform scanning tunneling spectroscopy." Physical review letters vol. 95,17 (2005): 176803. doi: https://doi.org/10.1103/PhysRevLett.95.176803
Vonau F, Aubel D, Gewinner G, Zabrocki S, Peruchetti JC, Bolmont D, Simon L. Evidence of hole-electron quasiparticle interference in ErSi2 semimetal by Fourier-transform scanning tunneling spectroscopy. Phys Rev Lett. 2005 Oct 21;95(17):176803. doi: 10.1103/PhysRevLett.95.176803. Epub 2005 Oct 20. PMID: 16383855.
Copy Download .nbib Format: NLM
Share it on

Phys Rev Lett. 2005 Oct 21;95(17):176803. doi: 10.1103/PhysRevLett.95.176803. Epub 2005 Oct 20.

Evidence of hole-electron quasiparticle interference in ErSi2 semimetal by Fourier-transform scanning tunneling spectroscopy.

Physical review letters

F Vonau, D Aubel, G Gewinner, S Zabrocki, J C Peruchetti, D Bolmont, L Simon

Affiliations

  1. Laboratoire de Physique et de Spectroscopie Electronique, CNRS-UMR7014, 4, rue des Frères Lumière 68093 Mulhouse, France.

PMID: 16383855 DOI: 10.1103/PhysRevLett.95.176803

Abstract

The semimetallic ErSi2 layer grown on Si(111) substrates provides an ideally confined 2D electron and hole gas that reflects in complex standing wave pattern at 77 K. The quasiparticles exist in a wide energy range from -800 to 300 meV without mixing with silicon bulk excitations. By comparing high resolution Fourier transform of dI/dV maps, with joint density of states calculations, we are able to determine the 2D band structure. We also clearly demonstrate that hole-hole and hole-electron quantum interferences dominate over electron-electron ones.

Publication Types