A miniature sample rotation device has been realized that fits into a cryos
tat of only 20 mm diameter and allows to perform a new procedure of alignin
g the anisotropy axis of uniaxially anisotropic ferromagnets precisely alon
g the neutron beam, so as to derive the relevant domain structure parameter
s From the observed neutron depolarization Test measurements on NdFeB sampl
es of known orientation of anisotropy show the feasibility of this new meth
od. (C) 2000 Elsevier Science B.V. All rights reserved.