Valence Band Study of Ba1-xSrxRuO3(x=0,0.2)

被引：1

作者：

Ali, Asif ^{[1
]}

Bansal, Sakshi ^{[1
]}

Reddy, B. H. ^{[1
]}

Singh, Ravi Shankar ^{[1
]}

机构：

[1] Indian Inst Sci Educ & Res Bhopal, Dept Phys, Bhopal Bypass Rd, Bhopal 462066, MP, India

来源：

DAE SOLID STATE PHYSICS SYMPOSIUM 2019 | 2020年 / 2265卷

关键词：

D O I：

10.1063/5.0016609

中图分类号：

O469 [凝聚态物理学];

学科分类号：

070205 ;

摘要：

Electronic structure of polycrystalline BaRuO(3)with 9R structure andBa(0.8)Sr(0.2)RuO(3)with4H structurehave been investigated using ultraviolet photoemission spectroscopy.Both the systems exhibit Fermi cut off at room temperature exhibiting metallic character. Comparison of experimental valence band spectra with available band structure calculations suggest weak/negligible electron correlation strength among these 4d transition metal oxides. Interestingly, 4H-Ba(0.8)Sr(0.2)RuO(3)exhibits flat spectral density of states while 9R-BaRuO(3)shows a dip at Fermi level indicating presence of a pseudogap.

引用

页数：4

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