Baenninger, M and Ghosh, A and Pepper, M and Beere, HE and Farrer, I and Ritchie, DA (2008) Magnetic-field-induced instabilities in localized two-dimensional electron systems. In: Physical Review B: Condensed Matter and Materials Physics, 78 (16).
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We report density dependent instabilities in the localized regime of mesoscopic two-dimensional electron systems (2DESs) with intermediate strength of background disorder. They are manifested by strong resistance oscillations induced by high perpendicular magnetic fields B⊥ . While the amplitude of the oscillations is strongly enhanced with increasing B⊥ , their position in density remains unaffected. The observation is accompanied by an unusual behavior of the temperature dependence of resistance and activation energies. We suggest the interplay between a strongly interacting electron phase and the background disorder as a possible explanation.
|Item Type:||Journal Article|
|Additional Information:||Copyright of this article belongs to The American Physical Society.|
|Department/Centre:||Division of Physical & Mathematical Sciences > Physics|
|Date Deposited:||07 Sep 2009 08:53|
|Last Modified:||19 Sep 2010 04:57|
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