Magnetic ground state of the one-dimensional ferromagnetic chain compounds M(NCS)(2)(thiourea)(2) (M = Ni, Co) by Curley, SPM, Scatena, R, Williams, RC, Goddard, PA, Macchi, P, Hicken, TJ, Lancaster, T, Xiao, F, Blundell, SJ, Zapf, V, Eckert, JC, Krenkel, EH, Villa, JA, Rhodehouse, ML, Manson, JL