Nematic order in topological Sachdev-Ye-Kitaev models

A Hardy, A Bose, A Paramekanti - Physical Review B, 2023 - APS
We study a class of multiorbital models based on those proposed by Venderbos et al.[Phys.
Rev. B 98, 235160 (2018) 2469-9950 10.1103/PhysRevB. 98.235160] which exhibit an …

Discovery of orbital ordering in Bi2Sr2CaCu2O8+x

S Wang, N Kennedy, K Fujita, S Uchida, H Eisaki… - Nature Materials, 2024 - nature.com
The primordial ingredient of cuprate superconductivity is the CuO2 unit cell. Theories usually
concentrate on the intra-atom Coulombic interactions dominating the 3 d 9 and 3 d 10 …

Orbital selective order and Potts nematicity from a non-Fermi liquid

YZ Xie, A Hardy, A Paramekanti - arXiv preprint arXiv:2402.16952, 2024 - arxiv.org
Motivated by systems where a high temperature non-Fermi liquid gives way to low
temperature $\mathbb {Z} _3 $ Potts nematic order, we studied a three-orbital Sachdev-Ye …

Nematic order in topological SYK models

A Hardy, A Bose, A Paramekanti - arXiv preprint arXiv:2308.13601, 2023 - arxiv.org
We study a class of multi-orbital models based on those proposed by Venderbos, Hu, and
Kane which exhibit an interplay of topology, interactions, and fermion incoherence. In the …