Abstract
We have studied temperature dependence of the diagonal resistivity ρxx in the vicinity of Landau level filling factor ν = 2/9 in a high quality two-dimensional electron system (2DES) and observed a direct transition from the ν = 2/9 fractional quantum Hall liquid to the reentrant insulator around ν = 1/5. Such a transition is forbidden in the global phase diagram proposed by Kivelson, Lee and Zhang for 2DES in the presence of disorder and magnetic field. Our result supports the interpretation of the insulator in terms of a phase with substantial Wigner crystal order.
Original language | English (US) |
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Pages (from-to) | 755-757 |
Number of pages | 3 |
Journal | Solid State Communications |
Volume | 99 |
Issue number | 10 |
DOIs | |
State | Published - Sep 1996 |
Externally published | Yes |
All Science Journal Classification (ASJC) codes
- General Chemistry
- Condensed Matter Physics
- Materials Chemistry
Keywords
- D. electronic transport
- D. fractional quantum Hall effect