Magnetic and transport percolation in diluted magnetic semiconductors
A. Kaminski, S. Das Sarma
TL;DR
This paper investigates how magnetic and transport percolation transitions are interconnected in diluted magnetic semiconductors, revealing signatures of magnetic clusters in transport behavior and non-monotonic resistivity changes with temperature.
Contribution
It provides a theoretical analysis of the correlation between magnetic and transport percolation in diluted magnetic semiconductors, highlighting potential simultaneous percolation phenomena.
Findings
Magnetic clusters influence transport properties.
Resistivity exhibits non-monotonic temperature dependence.
Magnetic and transport percolation transitions are correlated.
Abstract
The ferromagnetic transition in a diluted magnetic semiconductor with localized charge carriers is inevitably a percolation transition. In this work we theoretically study the correlation between this magnetic percolation and transport properties of the sample, including the possibility of a simultaneous transport percolation. We find nontrivial signatures of the percolating magnetic clusters in the transport properties of the system, including interesting non-monotonic temperature dependence of the system resistivity.
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