Fig. 1 (IMAGE) Science China Press Caption (a) The thermal conductivity as function of temperature. Insert is the chain structure of BiSeI. (b) The morphology of wire shape chains in 1D BiSeI. Credit ©Science China Press Usage Restrictions Use with credit. 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.