Applied Physics

Enhancing Diamond

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Science  13 Dec 2013:
Vol. 342, Issue 6164, pp. 1293
DOI: 10.1126/science.342.6164.1293-c

The thermal, mechanical, optical, and transport properties of diamond make it an ideal material for applications in high-end power electronics and high-frequency devices. More recently, the quantum properties of the various individual defects in diamond, particularly the nitrogen vacancy defect, also make it attractive for quantum information processing and quantum optical applications. Melville et al. demonstrate the potential to enhance that functionality even further by epitaxially growing a single-crystal europium oxide (EuO) layer on a diamond substrate. The EuO layer is a low-temperature ferromagnet and provides the possibility of controlling the properties of diamond magnetically. Varying the growth parameters of the EuO layer to manipulate the strain or expanding the search for other compatible functional oxides provides the opportunity of adding further control knobs for the already multipurpose diamond.

Appl. Phys. Lett. 103, 222402 (2013).

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