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Chern bands of twisted bilayer graphene: fractional Chern insulators and spin phase transition
Cécile Repellin, T. Senthil
When one of the graphene layers of Magic Angle Twisted Bilayer Graphene is nearly aligned with its hexagonal boron nitride substrate (a configuration dubbed TBG/hBN), the active el…
Landau ordering phase transitions beyond the Landau paradigm
Zhen Bi, Ethan Lake, T. Senthil
Continuous phase transitions associated with the onset of a spontaneously broken symmetry are thought to be successfully described by the Landau-Ginzburg-Wilson-Fisher theory of fl…
Possible quantum paramagnetism in compressed SrIrO
D. Haskel, G. Fabbris, J. H. Kim +9
The effect of compression on the magnetic ground state of SrIrO is studied with x-ray resonant techniques in the diamond anvil cell. The weak interlayer exchange coupling b…
Ferromagnetism in narrow bands of moiré superlattices
Cécile Repellin, Zhihuan Dong, Ya-Hui Zhang +1
Many graphene moiré superlattices host narrow bands with non-zero valley Chern numbers. We provide analytical and numerical evidence for a robust spin and/or valley polarized insul…
Modeling the pseudogap metallic state in cuprates: quantum disordered pair density wave
Zhehao Dai, T. Senthil, Patrick A. Lee
We present a way to quantum-disorder a pair density wave, and propose it to be a candidate of the effective low-energy description of the pseudogap metal which may reveal itself in…
Quantum Spin Liquids
C. Broholm, R. J. Cava, S. A. Kivelson +3
Spin liquids are quantum phases of matter that exhibit a variety of novel features associated with their topological character. These include various forms of fractionalization - e…