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…
Symmetry constrained field theories for chiral spin liquid to spin crystal transitions
Anjishnu Bose, Andrew Hardy, Naren Manjunath +2
We consider the spin rotationally invariant Kalmeyer-Laughlin chiral spin liquid (CSL) in systems with broken time-reversal symmetry and explore symmetry constraints on possible co…
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…