|
| | | | |
| | | |
| Stat |
Members: 3654
Articles: 2'568'305
Articles rated: 2609
27 July 2024 |
|
| | | | |
|
Article overview
| |
|
|
From a superconductor NdNiO$_2$ to a Mott multiferroic BiNiO$_2$ | | Hu Zhang
; RuiFeng Zhang
; Lulu Zhao
; Chendong Jin
; Ruqian Lian
; Peng-Lai Gong
; RuiNing Wang
; JiangLong Wang
; Xing-Qiang Shi
; | | Date: |
1 Feb 2023 | | Abstract: | Motivated by the recently discovered superconductivity in Sr-doped nickelate
oxides NdNiO$_2$, we predict a material BiNiO$_2$ that provides an opportunity
to study the intertwined ferroelectricity, metallicity, and magnetism in a
crystal with very simple atomic structures. There is a ferroelectric structural
transition from the nonpolar phase with the P4/mmm space group to the polar
phase with the P4mm space group, which is driven by the lone pair on Bi.
Calculations based on the Heyd-Scuseria-Ernzerhof hybrid density functional
reveal that both the nonmagnetic and ferromagnetic states are metallic for
nonpolar and polar phases, while the lowest energy ground-state for polar
BiNiO$_2$ is a Hubbard Mott insulator with the G-type antiferromagnetic spin
configurations. As a ferroelectric material with an electric polarization of
0.49 C/m2, it may be possible to control the magnetic order in BiNiO$_2$ by an
applied electric field. The replacement of Nd by Bi serves as a connecting link
between a high-temperature superconductor and a Mott multiferroic. Our work
supports a route towards strongly correlated ferroelectrics. | | Source: | arXiv, 2302.00172 | | Services: | Forum | Review | PDF | Favorites | |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
|
| |
|
|
|
REGISTER