Larsen, J.; Schaffer, T.K.; Hansen, U.B.; Holm, S.L.; Ahl, S.R.; Toft-Petersen, R.; Taylor, J.; Ehlers, G.; Jensen, J.; Ronnow, H.M.; Lefmann, K.; Christensen, N.B.: Spin excitations and quantum criticality in the quasi-one-dimensional Ising-like ferromagnet CoCl2 ⋅ 2D2O in a transverse field. Physical Review B 96 (2017), p. 174424/1-6
10.1103/PhysRevB.96.174424