2000/11/22 by L. Klein, Lior Klein, Yevgeny Kats +9
Materials Science · Mathematics · Physics and Astronomy · #Advanced Condensed Matter Physics #Condensed matter physics #Cuprate #Electrical resistivity and conductivity #Electron #Electron scattering #Electronic and Structural Properties of Oxides #Irradiation #Magnetic and transport properties of perovskites and related materials #Materials science #Mathematical analysis #Mathematics #Mean free path #Physics #Quantum mechanics #Scattering #Sublinear function #Superconductivity #cond-mat.str-el
paper · pdf · doi:10.1209/epl/i2001-00448-8
published as Europhys. Lett. 55, 532 (2001)
arxiv created 2000/11/22 · openalex publication_date 2001/08/01 · arxiv updated 2011/06/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
We have measured the change in the resistivity of thin films of SrRuO 3 and CaRuO 3 upon introducing point defects by electron irradiation at low temperatures, and we find significant negative deviations from Matthiessen's rule. For a fixed irradiation dose, the induced change in resistivity decreases with increasing temperature. Moreover, for a fixed temperature, the increase in resistivity with irradiation is found to be sublinear . We suggest that the observed behavior is due to the marked anisotropic scattering of the electrons together with their relatively short mean free path (both characteristic of many metallic oxides including cuprates) which amplify effects related to the Pippard ineffectiveness condition.