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Three-dimensional nematic spin liquid in the stacked triangular lattice 6H-B structure
Kyusung Hwang, Tyler Dodds, Subhro Bhattacharjee +1
Recently, a number of experiments indicate the possible presence of spin liquid phases in quantum magnets with spin-1/2 and spin-1 moments sitting on triangular-lattice-based struc…
Magnetic excitation spectra in pyrochlore iridates
Eric Kin-Ho Lee, Subhro Bhattacharjee, Yong Baek Kim
Metal-insulator transitions in pyrochlore iridates (A2Ir2O7) are believed to occur due to subtle interplay of spin-orbit coupling, geometric frustration, and electron interactions.…
Quantum Phase Transition in Heisenberg-Kitaev Model
Robert Schaffer, Subhro Bhattacharjee, Yong Baek Kim
We explore the nature of the quantum phase transition between a magnetically ordered state with collinear spin pattern and a gapless spin liquid in the Heisenberg-Kitaev mode…
Fractionalized topological insulators from frustrated spin models in three dimensions
Subhro Bhattacharjee, Yong Baek Kim, Sung-Sik Lee +1
We present a theory of three dimensional fractionalized topological insulators in the form of U(1) spin liquids with gapped fermionic spinons in the bulk and topologically protecte…