Moncommensurate atomic structure of the alloy Ni +67.7 at.
Dubinin S.F., Teploukhov S.G., Sidorov S.K.
A neutron-diffraction method was used to investigate an iron-nickel single crystal with 67.7 at.% Fe. The neutron-diffraction pattern at room temperature has revealed, for the first time, superstructure reflections that are regularly arranged in the reciprocal lattice. The scattering patterns are easiest to interpret within the framework of an atomic structure that is noncommensurate with the principal fee lattice.