Bulletin of the American Physical Society
APS March Meeting 2020
Volume 65, Number 1
Monday–Friday, March 2–6, 2020; Denver, Colorado
Session U48: Superconductivity: Nickelates II (Theory and Models)
2:30 PM–4:54 PM,
Thursday, March 5, 2020
Room: Mile High Ballroom 1A
Sponsoring
Unit:
DCMP
Chair: B. Moritz
Abstract: U48.00002 : Nickelate superconductivity —A systematic computational design of dynamically stable d9 nickelates
View Presentation
Abstract
Presenter:
Terumasa Tadano
(National Institute for Materials Science (NIMS))
Authors:
Motoaki Hirayama
(RIKEN)
Terumasa Tadano
(National Institute for Materials Science (NIMS))
Yusuke Nomura
(RIKEN)
Ryotaro Arita
(University of Tokyo)
In this talk, we show that more ideal d9 nickelates can be realized by adopting different types of BLs. By systematically generating new potential nickelate structures and then performing ab initio phonon calculations, we theoretically propose more than 10 new compounds that are dynamically stable and whose electronic structures better mimic that of the cuprates. We demonstrate that the newly proposed layered nickelates are in the strongly-correlated regime without forming an extra Fermi pocket as large as that of NdNiO2. We also discuss the possibility of palladate analogues of high-Tc cuprates briefly. This presentation is based on Ref. [3].
[1] D. Li et al., Nature 572, 624 (2019).
[2] Y. Nomura et al., arXiv:1909.03942.
[3] M. Hirayama, T. Tadano, et al., arXiv:1910.03974.
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