Fred Tutt
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View article: High-temperature anomalous Hall effect driven by frustrated spin fluctuations in the antiferromagnetic delafossite metal PdCrO <sub>2</sub>
High-temperature anomalous Hall effect driven by frustrated spin fluctuations in the antiferromagnetic delafossite metal PdCrO <sub>2</sub> Open
Metallic delafossite oxides are of exceptional interest due to their ultraclean metallic transport. In the case of PdCrO 2 , this arises in a triangular-lattice antiferromagnet, creating a unique opportunity to study frustrated magnetism i…
View article: Dual Optical Hyperbolicity of PdCoO<sub>2</sub> and PdCrO<sub>2</sub> Delafossite Single Crystals
Dual Optical Hyperbolicity of PdCoO<sub>2</sub> and PdCrO<sub>2</sub> Delafossite Single Crystals Open
Hyperbolic materials exhibit a very peculiar optical anisotropy with simultaneously different signs of the dielectric tensor components. This anisotropy allows the propagation of exotic surface‐wave excitations like hyperbolic phonons and …
View article: Dual Optical Hyperbolicity of PdCoO$_2$ and PdCrO$_2$ Delafossite Single Crystals
Dual Optical Hyperbolicity of PdCoO$_2$ and PdCrO$_2$ Delafossite Single Crystals Open
Hyperbolic materials exhibit a very peculiar optical anisotropy with simultaneously different signs of the dielectric tensor components. This anisotropy allows the propagation of exotic surface-wave excitations like hyperbolic phonons and …
View article: Crystal-Chemical Origins of the Ultrahigh Conductivity of Metallic Delafossites
Crystal-Chemical Origins of the Ultrahigh Conductivity of Metallic Delafossites Open
Despite their highly anisotropic complex-oxidic nature, certain delafossite compounds (e.g., PdCoO2, PtCoO2) are the most conductive oxides known, for reasons that remain poorly understood. Their room-temperature conductivity can exceed th…