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Updated: Jul 7, 2026

Carrier Lifetime Measurements in Semiconductors through the Microwave Photoconductivity Decay Method
Published on: April 18, 2019
Thermodynamics of carrier-mediated magnetism in semiconductors
A G Petukhov1, Igor Zutić, Steven C Erwin
1Department of Physics, South Dakota School of Mines and Technology, Rapid City, South Dakota 57701, USA.
Abstract:
We propose a model of carrier-mediated ferromagnetism in semiconductors that accounts for the temperature dependence of the carriers. The model permits analysis of the thermodynamic stability of competing magnetic states, opening the door to the construction of magnetic phase diagrams. As an example, we analyze the stability of a possible reentrant ferromagnetic semiconductor, in which increasing temperature leads to an increased carrier density such that the enhanced exchange coupling between magnetic impurities results in the onset of ferromagnetism as temperature is raised.
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