Iron Oxide Electron Hopping (image) DOE/Lawrence Berkeley National Laboratory Caption Iron oxide (rust) is a poor electrical conductor, but electrons in iron oxide can use thermal energy to hop from one iron atom to another. A Berkeley Lab experiment has revealed exactly what happens to electrons after being transferred to an iron oxide particle. Credit Image courtesy of Benjamin Gilbert, Berkeley Lab Usage Restrictions None Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.