PerspectiveMaterials Growth

Epitaxy on polycrystalline substrates

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Science  03 Nov 2017:
Vol. 358, Issue 6363, pp. 587-588
DOI: 10.1126/science.aao1293

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Motivated by combinatorial and high-throughput approaches to the discovery of antibodies and drugs in pharmaceutical research, efforts like the Materials Genome Initiative (1) have been envisioned to develop similar algorithms for the discovery, design, and realization of next-generation materials, such as superconducting (2), magnetoresistive (3), dielectric (4), and luminescent (5) materials. However, such experimental approaches have not become pervasive across all classes of materials. For example, in the study of thin-film, functional complex oxides, systematic, small-scale exploration has remained the standard. However, studies like that of Wittkamper et al. (6), which explore many different substrates by using a polycrystalline substrate, stand poised to open the door for high-throughput studies of complex materials.