Ferromagnetic Ring (image) Johannes Gutenberg Universitaet Mainz Share Print E-Mail Caption This is an image of a ferromagnetic ring prepared using a scanning electron microscope. The magnetization (black/white contrast) runs along the ring and forms two domain walls. Credit photo/©: André Bisig, Institute of Physics, Johannes Gutenberg University Mainz Usage Restrictions The image may be used only in conjunction with the press release or parts of it. Share Print E-Mail 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.