Sr4Ru3O10 is a Ruddlesden-Popper compound with triple Ru-O perovskite layers separated by Sr-O rock-salt layers. This compound presents a rare coexistence of interlayer (c-axis) ferromagnetism and intralayer (basal-plane) metamagnetism at ambient pressure. Here we report the observation of pressure-induced, intralayer itinerant antiferromagnetism arising from the interlayer ferromagnetism. The application of modest hydrostatic pressure generates an anisotropy that may cause a flattening and a tilting of RuO6 octahedra. All magnetic and transport results from this study indicate these lattice distortions diminish the c-axis ferromagnetism and basal-plane metamagnetism, and induce a basal-plane antiferromagnetic state. The unusually large magnetoelastic coupling and pressure tunability of Sr4Ru3O10 makes it a model system for studies of itinerant magnetism.
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This work was supported by NSF Grant No. DMR-1712101, and the research of L.E.D. is supported by NSF Grant No. DMR-1506979.
Zheng, H.; Song, W. H.; Terzic, J.; Zhao, H. D.; Ni, Y. F.; DeLong, Lance E.; Schlottmann, P.; and Cao, G., "Observation of a Pressure-Induced Transition from Interlayer Ferromagnetism to Intralayer Antiferromagnetism in Sr4Ru3O10" (2018). Physics and Astronomy Faculty Publications. 628.