自保护帽层下的SrVO3的块状d带

Stabilization of the oxygen concentration in La$_{0.3}$Sr$_{0.7}$CoO$_{3-δ}$ thin films by LaAlO$_3$ capping layer

We have grown La$_{0.3}$Sr$_{0.7}$CoO$_{3-δ}$ thin films by pulsed laser deposition on (LaAlO$_3$)$_{0.3}$(Sr$_2$TaAlO$_3$)$_{0.7}$ substrates with and without a protective LaAlO$_3$ capping layer and investigated their structural and magnetic properties. We have observed that, in the uncapped films, the Curie temperature strongly decreased after annealing in helium atmosphere, and it significantly decreased even in samples stored for several weeks at room temperature. The decrease of the Currie temperature is caused by an increase of the concentration of oxygen vacancies, δ. However, we show …

Evidence of electron correlation and weak bulk plasmon in SrMoO$_{3}$

We investigate the electronic structure of highly conducting perovskite SrMoO$_{3}$ using valence band photoemission spectroscopy and electronic structure calculations. Large intensity corresponding to coherent feature close to Fermi level is captured by density functional theory (DFT) calculation. An additional satellite at $\sim$ 3 eV binding energy remains absent in DFT, hybrid functional (DFT-hybrid) and dynamical mean field theory (DFT + DMFT) calculations. Mo 4$d$ spectra obtained with different surface sensitive photoemission spectroscopy suggest different surface and bulk electronic st…

PuFeAsO的体相性质和电子结构

Bulk properties and electronic structure of PuFeAsO

在这里，我们提出了体积性质的测量和电子结构计算PuFeAsO，锕系类似物的铁基稀土超导体RFeAsO。磁化率和热容数据表明，在TN=50 K时发生反铁磁转变。没有进一步的异常已经观察到2 K，我们已经能够实现的最低温度。结构测量表明，PuFeAsO，其更本地化的5f电子，具有更强的相似性的RFeAsO化合物与更大的R离子，比NpFeAsO没有。