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Grand canonical Peierls transition in In/Si(111)

Eric Jeckelmann, Simone Sanna, Wolf Gero Schmidt, Eugen Speiser, and Norbert Esser
Phys. Rev. B 93, 241407(R) – Published 21 June 2016
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Abstract

Starting from a Su-Schrieffer-Heeger-like model inferred from first-principles simulations, we show that the metal-insulator transition in In/Si(111) is a first-order grand canonical Peierls transition in which the substrate acts as an electron reservoir for the wires. This model explains naturally the existence of a metastable metallic phase over a wide temperature range below the critical temperature and the sensitivity of the transition to doping. Raman scattering experiments corroborate the softening of the two Peierls deformation modes close to the transition.

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  • Received 29 September 2015
  • Revised 30 April 2016

DOI:https://doi.org/10.1103/PhysRevB.93.241407

©2016 American Physical Society

Physics Subject Headings (PhySH)

Condensed Matter, Materials & Applied Physics

Authors & Affiliations

Eric Jeckelmann1,*, Simone Sanna2, Wolf Gero Schmidt2, Eugen Speiser3, and Norbert Esser3

  • 1Institut für Theoretische Physik, Leibniz Universität Hannover, Appelstrasse 2, 30167 Hannover, Germany
  • 2Lehrstuhl für Theoretische Materialphysik, Universität Paderborn, D-33095 Paderborn, Germany
  • 3Leibniz-Institut für Analytische Wissenschaften, ISAS e.V., Schwarzschildstrasse 8, D-12489 Berlin, Germany

  • *eric.jeckelmann@itp.uni-hannover.de

See Also

Origin of the metal-insulator transition of indium atom wires on Si(111)

Sun-Woo Kim and Jun-Hyung Cho
Phys. Rev. B 93, 241408(R) (2016)

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Issue

Vol. 93, Iss. 24 — 15 June 2016

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