图1 (IMAGE) Science China Press Caption 理想第二类外尔点的实验观测。(a)周期边界电路样品图。(b)-(c)周期边界电路的能带。(d)开放边界电路样品图。(e)开放边界电路的能带。(f)表面态的场分布。 Credit ©《中国科学》杂志社 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.