Berlin 2015 – scientific programme
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MM: Fachverband Metall- und Materialphysik
MM 24: Transport II: Thermal and Electrical Conductivity
MM 24.4: Talk
Tuesday, March 17, 2015, 12:30–12:45, H 0107
crystal growth, resistivity and hall effect of the delafossite metal PtCoO2 — pallavi kushwaha1, philip moll2, •nabhanila nandi1, and andrew mackenzie1,3 — 11 Max Planck Institute for Chemical Physics of Solids, Nöthnitzer Straβe 40, 01217 Dresden, Germany — 2Laboratory for Solid State Physics, ETH Zurich, Switzerland — 3Scottish Universities Physics Alliance, School of Physics and Astronomy, University of St. Andrews, St. Andrews KY16 9SS, United Kingdom
We report single crystal growth of the delafossite oxide PtCoO2, and basic transport measurements on single crystals etched to well-defined geometries using focused ion beam techniques. The room temperature resistivity is 2.1 μΩcm, and the Hall coefficient is consistent with the existence of one free electron per Pt. Although the residual resistivity ratio is greater than fifty, a slight upturn of resistivity is seen below 15 K. The angle dependence of the in-plane magnetoresistance is also reported.