Sensitivity to Disorder of the Metallic State in the Ruthenates

Capogna, L.; Mackenzie, A. P.; Perry, R. S.; Grigera, S. A.; Galvin, L. M.; Raychaudhuri, P.; Schofield, A. J.; Alexander, C. S.; Cao, G.; Julian, S. R.; Maeno, Y.

doi:10.1103/PhysRevLett.88.076602

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Sensitivity to Disorder of the Metallic State in the Ruthenates

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Capogna, L., Mackenzie, A. P., Perry, R. S., Grigera, S. A., Galvin, L. M., Raychaudhuri, P., et al. (2002). Sensitivity to Disorder of the Metallic State in the Ruthenates. Physical Review Letters, 88(7): 076602, pp. 1-4. doi:10.1103/PhysRevLett.88.076602.

Cite as: https://hdl.handle.net/11858/00-001M-0000-0018-EF77-2

Abstract

We report the results of transport measurements on SrRuO3, Sr3Ru2O7, and CaRuO3. In SrRuO3 and Sr3Ru2O7, our findings are consistent with the predictions of Fermi liquid theory, in contrast to previous reports based on samples with much shorter mean free paths. In CaRuO3, however, a T-1.5 power law is seen in the resistivity in the high purity samples studied here. Our work gives concrete evidence that even the metallic state of the ruthenates is highly sensitive to disorder.