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APS » Journals » Phys. Rev. B » Volume 49 » Issue 19
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Phys. Rev. B 49, 14062–14065 (1994)

Character of the phase transition at the two-dimensional electron-liquid-to-solid boundary

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V. M. Pudalov*
Institute for High Pressure Physics, Troitsk, Moscow District 142092, Russia

S. T. Chui
Bartol Research Institute, University of Delaware, Newark, Delaware 19716

Received 14 February 1994; published in the issue dated 15 May 1994

Nonlinear threshold electric transport has been studied at T≃30 mK near the collective insulating transition in a dilute two-dimensional (2D) electron system in high-mobility Si MOSFET's. We found that the threshold electric field becomes steplike at the critical density, both when H=0 and when H≠0. This steplike onset indicates a weak first-order phase transition at the 2D electron-solid-to-liquid phase boundary.

© 1994 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevB.49.14062
DOI:
10.1103/PhysRevB.49.14062
PACS:

*Present address: High Field Magnet Laboratory, University of Nijmegen, ED 6525, The Netherlands.

 
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