论文标题
部分可观测时空混沌系统的无模型预测
Temperature dependence of the energy band gap in ZrTe$_5$: implications for the topological phase
论文作者
论文摘要
使用Landau水平光谱法，我们确定甲氯吡啶二硫硫胺素（Zrte $ _5 $）中能带隙的温度依赖性。我们发现，在低温下，频带隙达到$ e_g =（5 \ pm 1）$ MEV，并在温度升高时单调增加。这意味着Zrte $ _5 $是一个弱拓扑绝缘子，在布里渊区中心的电子频带的订购不转移。我们在并行执行的磁铁传输实验表明，Zrte $ _5 $中的电阻率异常与频带间隙的温度依赖性无关。
Using Landau level spectroscopy, we determine the temperature dependence of the energy band gap in zirconium pentatelluride (ZrTe$_5$). We find that the band gap reaches $E_g=(5 \pm 1)$ meV at low temperatures and increases monotonously when the temperature is raised. This implies that ZrTe$_5$ is a weak topological insulator, with non-inverted ordering of electronic bands in the center of the Brillouin zone. Our magneto-transport experiments performed in parallel show that the resistivity anomaly in ZrTe$_5$ is not connected with the temperature dependence of the band gap.
