Electron-electron interaction and weak localization effects in badly metallic SrRuO3
نویسندگان
چکیده
M. A. López de la Torre,* Z. Sefrioui, D. Arias, M. Varela, J. E. Villegas, C. Ballesteros, C. León, and J. Santamarı́a Departamento de Fı́sica Aplicada, Universidad de Castilla-La Mancha, 13071-Ciudad Real, Spain Instituto de Microelectrónica de Madrid, C.S.I.C., Tres Cantos, 28760-Madrid, Spain Departamento de Fı́sica Aplicada III, Universidad Complutense de Madrid, 28040-Madrid, Spain Departamento de Fı́sica Aplicada, Universidad Carlos III de Madrid, Leganés 28911-Madrid, Spain Departamento de Fı́sica de Materiales, Universidad Complutense de Madrid, 28040-Madrid, Spain ~Received 13 July 1999; revised manuscript received 14 August 2000; published 5 January 2001!
منابع مشابه
Magnetic field effect on quantum corrections to the low-temperature conductivity in metallic perovskite oxides
The transport and magnetotransport properties of the metallic and ferromagnetic SrRuO3 SRO and the metallic and paramagnetic LaNiO3 LNO epitaxial thin films have been investigated in fields up to 55 T at temperatures down to 1.8 K. At low temperatures both samples display a well-defined resistivity minimum. We argue that this behavior is due to the increasing relevance of quantum corrections to...
متن کاملMagnetoconductance Oscillations in Metallic Rings & Decoherence Due to Electron-electron Interaction
We study weak localization in chains of metallic rings. We show than nonlocality of quantum transport can drastically affect the behaviour of the harmonics of magnetoconductance oscillations. Two different geometries are considered : the case of rings separated by long wires compared to the phase coherence length and the case of contacted rings. In a second part we discuss the role of decoheren...
متن کاملSelf-interference of charge carriers in ferromagnetic SrRuO3
We report a systematic study of the low-temperature electrical conductivity in a series of SrRuO3 epitaxial thin films. At relatively high temperature the films display the conventional metallic behavior. However, a well-defined resistivity minimum appears at low temperature. This temperature dependence can be well described in a weak localization scenario: the resistivity minimum arising from ...
متن کاملThickness-dependent metal-insulator transition in epitaxial SrRuO3 ultrathin films
Transport characteristics of ultrathin SrRuO3 films, deposited epitaxially on TiO2-terminated SrTiO3 (001) single-crystal substrates, were studied as a function of film thickness. Evolution from a metallic to an insulating behavior is observed as the film thickness decreases from 20 to 4 unit cells. In films thicker than 4 unit cells, the transport behavior obeys the Drude low temperature condu...
متن کاملObservation of particle hole asymmetry and phonon ex- citations in non-Fermi liquid systems: A high-resolution photoemission study of ruthenates
– We investigate the temperature evolution of the electronic states in the vicinity of the Fermi level of a non-Fermi liquid (NFL) system, CaRuO3 using ultra high-resolution photoemission spectroscopy; isostructural SrRuO3 exhibiting Fermi liquid behavior despite similar electron interaction parameters as that of CaRuO3, is used as a reference. High-energy resolution in this study helps to reve...
متن کامل