Nickelate superconductors-a renaissance of the one-band Hubbard model

doi:10.1038/s41535-020-00260-y

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	Nickelate superconductors-a renaissance of the one-band Hubbard model
	Kitatani, Motoharu; Si, Liang; Janson, Oleg; Arita, Ryotaro; Zhong, Zhicheng; Held, Karsten
刊名	NPJ QUANTUM MATERIALS
	2020
卷号	5 期号:1
关键词	HIGH-TC SUPERCONDUCTIVITY CU FLUCTUATIONS DYNAMICS STATES
DOI	10.1038/s41535-020-00260-y
英文摘要	The recently discovered nickelate superconductors appear, at first glance, to be even more complicated multi-orbital systems than cuprates. To identify the simplest model describing the nickelates, we analyse the multi-orbital system and find that it is instead the nickelates which can be described by a one-band Hubbard model, albeit with an additional electron reservoir and only around the superconducting regime. Our calculations of the critical temperatureT(C)are in good agreement with experiment, and show that optimal doping is slightly below 20% Sr-doping. Even more promising than 3dnickelates are 4dpalladates.
学科主题	Materials Science ; Physics
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20564]
专题	2020专题
作者单位	Held, K (corresponding author), Vienna Univ Technol, Inst Solid State Phys, A-1040 Vienna, Austria.
推荐引用方式 GB/T 7714	Kitatani, Motoharu,Si, Liang,Janson, Oleg,et al. Nickelate superconductors-a renaissance of the one-band Hubbard model[J]. NPJ QUANTUM MATERIALS,2020,5(1).
APA	Kitatani, Motoharu,Si, Liang,Janson, Oleg,Arita, Ryotaro,Zhong, Zhicheng,&Held, Karsten.(2020).Nickelate superconductors-a renaissance of the one-band Hubbard model.NPJ QUANTUM MATERIALS,5(1).
MLA	Kitatani, Motoharu,et al."Nickelate superconductors-a renaissance of the one-band Hubbard model".NPJ QUANTUM MATERIALS 5.1(2020).