تقرير
Three-dimensional bond-order instability in infinite-layer nickelates due to nonlocal quantum interference
| العنوان: | Three-dimensional bond-order instability in infinite-layer nickelates due to nonlocal quantum interference |
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| المؤلفون: | Onari, Seiichiro, Kontani, Hiroshi |
| المصدر: | Phys. Rev. B 108, L241119 (2023) |
| سنة النشر: | 2022 |
| المجموعة: | Condensed Matter |
| مصطلحات موضوعية: | Condensed Matter - Strongly Correlated Electrons, Condensed Matter - Superconductivity |
| الوصف: | Recently discovered superconducting infinite-layer nickelates $R$NiO$_2$ ($R$=Nd, La, Pr) attracts increasing attention as a similar system to cuprates. Both $R$NiO$_2$ and YBCO cuprates display the three-dimensional (3D) CDW with wave vector ${\bf q}\sim(2\pi/3,0,q_z)$, while $q_z$ is non-zero and incommensurate in the former system. Here, we reveal that the characteristic CDW in $R$NiO$_2$ can be naturally explained as the quantum interference between paramagnons, by focusing on the following characteristics of $R$NiO$_2$: (i) prominent three-dimensionality in the Fermi surface and (ii) large self-hole-doping ($\sim 14$%). This mechanism predicts the emergence of the $d_{x^2-y^2}$-wave bond order at a secondary 3D nesting vector ${\bf q}^c\sim(2\pi/3,0,q^c_z)$ $(q^c_z=0.2\pi\sim 2\pi/3)$. The obtained strong bond fluctuations lead to the non-Fermi liquid electronic states and superconducting states in nickelates. Comment: 9 pages, 6 figures |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1103/PhysRevB.108.L241119 |
| URL الوصول: | http://arxiv.org/abs/2212.13784 |
| رقم الأكسشن: | edsarx.2212.13784 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1103/PhysRevB.108.L241119 |
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