Abstract
We report low-temperature, high-field magnetotransport measurements of gated by an ionic gel electrolyte. A saturating resistance upturn and negative magnetoresistance that signal the emergence of the Kondo effect appear for higher applied gate voltages. This observation, enabled by the wide tunability of the ionic gel-applied electric field, promotes the interpretation of the electric field-effect-induced 2D electron system in as an admixture of magnetic ions, i.e., localized and unpaired electrons, and delocalized electrons that partially fill the Ti conduction band.
- Received 5 August 2011
DOI:https://doi.org/10.1103/PhysRevLett.107.256601
© 2011 American Physical Society
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Tuning Correlations in a 2D Electron Liquid
Published 12 December 2011
Simulating part of a perovskite heterostructure with a polarizable gel reveals the instrinsic properties of a two-dimensional electron liquid.
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