  The rare earth neodymium arguably exhibits the most complex magnetic ordering
and series of magnetic phase transitions of the elements. Here we report the
results of small-angle neutron scattering (SANS) measurements as a function of
temperature and applied magnetic field to study magnetic correlations on
nanometer length scales in Nd. The SANS measurements reveal the presence of
previously unreported modulation vectors characterizing the ordered spin
configuration which exhibit changes in magnitude and direction that are phase
dependent. Between 5.9 and 7.6 K the additional modulation vector has a
magnitude $Q$ =0.12 \AA$^{-1}$ and is primarily due to order of the Nd layers
which contain a center of inversion. In this region of the phase diagram, the
SANS measurements also identify a phase boundary at $\approx$1 T. An important
feature of these modulation vectors is that they indicate the presence of
nanometer length scale spin textures which are likely stabilized by frustrated
Ruderman-Kittel-Kasuya-Yosida (RKKY) interactions rather than a
Dzyaloshinskii-Moriya (DM) exchange interaction.
