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arXiv · 1302.5184

Electric field and photo-excited control of the carrier concentration in GdN

Harry Warring·B. J. Ruck·H. J. Trodahl·F. Natali
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Abstract

We present both electric-field and photo-excited control of the carrier concentration in GdN. There is no evidence in the results of a carrier-mediated contribution to the Gd-Gd exchange interaction that has been suggested to explain a measured Curie temperature that is much higher than obtained within theoretical treatments. Persistent carrier concentrations seen in both the field-effect and photo-induced conductivities point to a distribution of long-lived trap states below the conduction band, very likely centred at nitrogen vacancies

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Harry Warring, B. J. Ruck, H. J. Trodahl, F. Natali. 2013-02-21. Electric field and photo-excited control of the carrier concentration in GdN. https://doi.org/10.1063/1.4800455

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