论文标题

高导电性钙钛矿氧化物Srmoo $ _3 $的电子结构

Electronic structure of the highly conductive perovskite oxide SrMoO$_3$

论文作者

Cappelli, E., Hampel, A., Chikina, A., Guedes, E. Bonini, Gatti, G., Hunter, A., Issing, J., Biskup, N., Varela, M., Dreyer, Cyrus E., Tamai, A., Georges, A., Bruno, F. Y., Radovic, M., Baumberger, F.

论文摘要

我们使用角度分辨的光发射来绘制srmoo $ _3 $的散装薄膜的费米表面和准粒子分散体,该薄膜是由脉冲激光沉积生长的。从我们的数据中得出的电子能源表明,SRMOO $ _3 $中的弱至中度相关性,这与我们在整个占用的频段宽度上观察到定义明确的电子状态。我们进一步介绍了光谱函数计算,将动态平均场理论与密度功能计算的展开过程相结合,并在我们的实验中证明了这种方法的良好一致性。

We use angle-resolved photoemission to map the Fermi surface and quasiparticle dispersion of bulk-like thin films of SrMoO$_3$ grown by pulsed laser deposition. The electronic self-energy deduced from our data reveals weak to moderate correlations in SrMoO$_3$, consistent with our observation of well-defined electronic states over the entire occupied band width. We further introduce spectral function calculations that combine dynamical mean-field theory with an unfolding procedure of density functional calculations and demonstrate good agreement of this approach with our experiments.

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