Although crystals of strongly correlated metals exhibit a diverse set of electronic ground states, few approaches exist for spatially modulating their properties. In this study, we demonstrate disorder-free control, on the micrometer scale, over the superconducting state in samples of the heavy-fermion superconductor CeIrIn5. We pattern crystals by focused ion beam milling to tailor the boundary conditions for the elastic deformation upon thermal contraction during cooling. The resulting nonuniform strain fields induce complex patterns of superconductivity, owing to the strong dependence of the transition temperature on the strength and direction of strain. These results showcase a generic approach to manipulating electronic order on micrometer length scales in strongly correlated matter without compromising the cleanliness, stoichiometry, or mean free path.
Bachmann MD, Ferguson GM, Theuss F, et al. Spatial control of heavy-fermion superconductivity in CeIrIn5. Science. 2019;366(6462):221-226. doi:10.1126/science.aao6640
Bachmann, M. D., Ferguson, G. M., Theuss, F., Meng, T., Putzke, C., Helm, T., … Moll, P. J. W. (2019). Spatial control of heavy-fermion superconductivity in CeIrIn5. Science, 366(6462), 221–226. https://doi.org/10.1126/science.aao6640
Bachmann, Maja D., G. M. Ferguson, Florian Theuss, Tobias Meng, Carsten Putzke, Toni Helm, K. R. Shirer, et al. “Spatial Control of Heavy-Fermion Superconductivity in CeIrIn5.” Science 366, no. 6462 (2019): 221–26. https://doi.org/10.1126/science.aao6640.
M. D. Bachmann et al., “Spatial control of heavy-fermion superconductivity in CeIrIn5,” Science, vol. 366, no. 6462, pp. 221–226, 2019.
Bachmann MD, Ferguson GM, Theuss F, Meng T, Putzke C, Helm T, Shirer KR, Li Y-S, Modic KA, Nicklas M, König M, Low D, Ghosh S, Mackenzie AP, Arnold F, Hassinger E, McDonald RD, Winter LE, Bauer ED, Ronning F, Ramshaw BJ, Nowack KC, Moll PJW. 2019. Spatial control of heavy-fermion superconductivity in CeIrIn5. Science. 366(6462), 221–226.
Bachmann, Maja D., et al. “Spatial Control of Heavy-Fermion Superconductivity in CeIrIn5.” Science, vol. 366, no. 6462, AAAS, 2019, pp. 221–26, doi:10.1126/science.aao6640.