13 papers
Jahn-Teller effect in Mott insulators: Ground states and thermal fluctuations
Kathleen Hart, Ruairidh Sutcliffe, Arun Paramekanti
The interplay of strong atomic spin-orbit coupling with Jahn-Teller (JT) lattice distortions is an important theme in quantum materials hosting heavy atoms. A prototypical example…
Two-orbital model with bond-dependent spin-orbit coupling: A playground for emergent band topology, Kitaev magnetism, and magnetoelectricity
YuZheng Xie, Manoj Gupta, Arun Paramekanti +1
Inspired by the electronic structure of compounds like nickel dihalides Ni (=Cl, Br, I), we propose a low-energy two-orbital model featuring bond-dependent spin-orbit…
d-Wave pair density wave superconductivity in a two-orbital model
Samuel Vadnais, Arun Paramekanti
Motivated by exploring superconductivity in multi-orbital systems, we study two orbital models of spinful fermions representing () or ( orbitals on the sq…
Majorana zero modes in superconductor-magnet heterostructures with d-wave order
Bastien Fajardo, T. Pereg-Barnea, Arun Paramekanti +1
Magnetic skyrmions in proximity to superconductors offer a route to engineering topological superconductivity due to the synthetic spin-orbit coupling engendered by the spin twist…
Searching for superconductivity in doped triangular lattice Kitaev magnets
Andrew Hardy, Ryan Levy, Arun Paramekanti
Motivated by exploring correlated metals with frustrating bond-dependent exchange interactions, we study hole and electron doped Kitaev Mott insulators on the triangular lattice. U…
Pseudo-chiral phonon splitting from octupolar magnetic order
Ruairidh Sutcliffe, Kathleen Hart, Swati Chaudhary +1
Motivated by the recent discovery of anomalously large magnetic response of chiral phonons in dipolar magnets, we explore an extension to study Einstein quantum phonon modes couple…