Quantum liquid versus electron solid around ν=1/5 Landau-level filling

H. W. Jiang, R. L. Willett, H. L. Stormer, D. C. Tsui, L. N. Pfeiffer, and K. W. West
Phys. Rev. Lett. 65, 633 – Published 30 July 1990
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Abstract

In the high-magnetic-field low-disorder limit the ground state at ν=1/5 Landau-level filling is an incompressible quantum liquid. This is determined by observing vanishing resistivity ρxx as the temperature T→0. At filling factors below ν=1/5 as well as in a narrow region above ν=1/5, ρxx diverges exponentially as T→0. This contrasts the T dependence at any higher ν. We conclude that the quantum liquid at ν=1/5 is surrounded by a different phase. In as much as the exponential divergencies are indicative of an electron solid this phase is reentrant in a narrow region above ν=1/5.

  • Received 15 February 1990

DOI:https://doi.org/10.1103/PhysRevLett.65.633

©1990 American Physical Society

Authors & Affiliations

H. W. Jiang, R. L. Willett, H. L. Stormer, D. C. Tsui, L. N. Pfeiffer, and K. W. West

  • Francis Bitter National Magnet Laboratory, Massachusetts Institute of Technology, Cambridge, Massachussetts 02139
  • Princeton University, Princeton, New Jersey 08544
  • AT&T Bell Laboratories, Murray Hill, New Jersey 07974

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Issue

Vol. 65, Iss. 5 — 30 July 1990

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