An Intermediate Phase at the Metal-Insulator Boundary in a Magnetically Doped Two-Dimensional Electron System

Details An Intermediate Phase at the Metal-Insulator Boundary in a Magnetically Doped Two-Dimensional Electron System An Intermediate Phase at the Metal-Insulator Boundary in a Magnetically Doped Two-Dimensional Electron System

2005-09-08

arxiv.org/abs/cond-mat/0509189v2

Phys. Rev. B 76, 045322 (2007)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

5 pages, 4 figures, title changed, text rewritten

Scientific paper

10.1103/PhysRevB.76.045322

A magnetotransport study in magnetically doped (Cd,Mn)Te 2D quantum wells reveals an apparent metal-insulator transition as well as an anomalous intermediate phase just on its metallic side. This phase is characterized by colossal magnetoresistance-like phenomena, which are assigned to the phase separation of the electron fluid and the associated emergence of ferromagnetic bubbles.

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