Development of multi-frequency ESR/EDMR system using a rectangular cavity equipped with waveguide window

A straightforward method for a variable frequency electron spinresonance/electrically detected magneticresonance (ESR/EDMR)spectroscopy using a C-bandmicrowavecavity equipped with waveguide windows is presented. The method enables us to perform quasi-continuous multipleresonance frequency (MF-ESR/EDMR) experiments for electronic devices. The C-bandmicrowave circuitry was selected because of larger available sample volume than that for conventional X-band one. All themeasurements were performed using a combined sample of 2,2-diphenyl-1-picrylhydrazyl/ pn-junction Si diode. The present simple MF-ESR/EDMR method will be useful for the characterization of electronic and optoelectronic devices.

Source: Review of Scientific Instruments - November 11, 2016 Category: Physics Authors: Kunito Fukuda and Naoki Asakawa Source Type: research