Yuan Wan and Oleg Tchernyshyov
Phys. Rev. Lett.108, 247210 (2012)
| (a) The checkerboard lattice. A and B denote two symmetrically inequivalent planar tetrahedra, and arrows, the local ẑi directions. (b) The fully polarized state when the field is applied in the c direction. Arrows denote the spin orientations. (c) A string of flipped spins (light green) binding a Q=+1 monopole (red solid circle) and a Q=-1 one (open blue circle). (d)–(f) -ImSaa(ω,k) for kb=0. B/h=0.5, 1.5, and 4.5, respectively. |
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