Magnetic order and softening of excitations in the nematic phases of Sr3Ru2O7 for in-plane fields
Metamagnetic materials are those which exhibit a field-induced transition from a low- to high-magnetization state. A very topical metamagnetic system is the layered oxide metal Sr3Ru2O7. This material may be prepared in high purity form and shows several metamagnetic features which are believed to be due to the underlying electronic structure, anisotropies therein, and anisotropies in the magnetic exchange interactions. For B parallel to the crystallographic c-axis, Sr3Ru2O7 shows kinks in the magnetic isotherms and peaks (anomalies) in the susceptibility. These features have been used to map out various phases including the famous "electron nematic phase". We have recently shown that this phase coincides with a dramatic softening of the magnetic excitations and the occurrence of incommensurate magnetic order. Here we propose to search for a similar softening and the occurrence of magnetic order for B applied perpendicular to the c-axis. Anomalies in the susceptibility have also been observed for this field direction.
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HAYDEN Stephen M.; CROFT Thomas; LESTER Christopher; RAYMOND Stephane and SCHMALZL Karin. (2014). Magnetic order and softening of excitations in the nematic phases of Sr3Ru2O7 for in-plane fields. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.4-01-1338
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