Understanding magnetism in infinite-layer nickelates ab initio
ORAL
Abstract
Since the discovery of superconductivity in Sr-doped NdNiO2 [1], magnetism has been ruled out [2] as being part of the equation in superconducting layered nickelates. Even though NdNiO2 (containing NiO2 layers with
Ni+:d9 cations) should be magnetically similar to the cuprates, it turns out to be drastically different [3]. In this talk, we will analyze the underlying electronic-structure mechanisms that lead to such different behavior in infinite-layer nickelates. In particular, we will describe the tendency towards magnetic order in a series of DFT-based ab initio calculations carried out on RNiO$_2$ (R:Nd, La).
[1] Danfeng Li et al., Nature 572, 624 (2019).
[2] George A. Sawatzky, Nature 572, 592 (2019).
[3] Antia S. Botana and Michael R. Norman, arxiv/1908.10946 (2019).
Ni+:d9 cations) should be magnetically similar to the cuprates, it turns out to be drastically different [3]. In this talk, we will analyze the underlying electronic-structure mechanisms that lead to such different behavior in infinite-layer nickelates. In particular, we will describe the tendency towards magnetic order in a series of DFT-based ab initio calculations carried out on RNiO$_2$ (R:Nd, La).
[1] Danfeng Li et al., Nature 572, 624 (2019).
[2] George A. Sawatzky, Nature 572, 592 (2019).
[3] Antia S. Botana and Michael R. Norman, arxiv/1908.10946 (2019).
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Presenters
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Victor Pardo
University of Santiago de Compostela
Authors
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Victor Pardo
University of Santiago de Compostela
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Adolfo O. Fumega
University of Santiago de Compostela
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Antia S. Botana
Arizona State Univ, Arizona State University, Department of Physics, Arizona State Univ, Department of Physics, Arizona State University