Coupled Spin Chains (IMAGE) The University of Hong Kong Caption Graph 1. Coupled spin chains with nearest-neighbor spin intrachain interaction (solid black line) and interchain interaction (red dashed line). Credit The University of Hong Kong Usage Restrictions None License Licensed content 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.