Static and Dynamical Properties of the Spin-1/2 Equilateral Triangular-Lattice Antiferromagnet Ba${}_3$CoSb${}_2$O${}_9$

J. Ma, Y. Kamiya, Tao Hong +7

We present single-crystal neutron scattering measurements of the spin-1/2 equilateral triangular lattice antiferromagnet Ba${}_3$CoSb${}_2$O${}_9$. Besides confirming that the Co${}^{2+}$…