The interplay between spin, orbital and charge degrees of freedom in 3d transition metal oxides has proven to be a rich area of research in recent years. Despite the wide array of interesting physics found in these materials, much less is known about whether similar behavior can be found in related 4d and 5d systems, for which both the extent of the d-orbitals and larger spin-orbit coupling cause a different balance between the relevant energy scales. In this new project, we are exploring the magnetic structures and phase transitions of some novel 5d transition metal oxides. Figure shows structure of the 5d1 Mott insulator Ba2NaOsO6. Single crystal is approx 1 mm in diameter. |
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