PtGa sample (IMAGE) City University of Hong Kong Caption The research team led by Dr Ma Junzhang from City University of Hong Kong and his collaborators identified 37 Weyl points in the momentum space in PtGa. Credit City University of Hong Kong Usage Restrictions Image must be used with appropriate caption and credit. License Original 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.