NUCLEAR AND MAGNETIC ORDER IN THE AMORPHOUS TBXCU1-X SYSTEM (0.18-LESS-THAN-OR-EQUAL-TO-X-LESS-THAN-OR-EQUAL-TO-0.65)

We have investigated the Tb(x)Cu1-x (0.18 less-than-or-equal-to x less-than-or-equal-to 0.65) amorphous alloys by neutron diffraction both above and below the ordering temperature, determined the nuclear and magnetic short-range order and measured the magnetization in an intense applied field. We present a set of results showing the evolution with x of the distances between atoms, the coordination number and the local magnetization, and the magnetization dependence on field at low temperatures. We show also the evolution of the magnetization over a range from a few to few thousand angstroms.