Brazilian Journal of Physics
On-line version ISSN 1678-4448
OLIVEIRA, I.S. and GUIMARAES, A.P.. Electrical Current Resonance and Current Echoes: A Proposed new Experimental Technique in Solid State Physics. Braz. J. Phys. [online]. 1997, vol.27, n.4, pp. 475-480. ISSN 1678-4448. http://dx.doi.org/10.1590/S0103-97331997000400008.
The similarity between the electron equation of motion in electric and magnetic fields and the Bloch equations for nuclear magnetic moments in a magnetic field leads to a novel resonance phenomenon involving the electrical current. This suggests a new experimental technique for the investigation of transport properties in conducting materials. In this work we propose a new set of Bloch Equations for the electrical current with different electron-electron and electron-lattice scattering rates and discuss the consequences of their solutions to the study of the electronic properties of conducting materials. We outline the experimental conditions for detecting electrical current resonance and estimate some relevant experimental parameters for the observation of current echoes and free current decays.