Fig. 2: Bulk characterization and zero-field magnetic structure of DyTe₃ from elastic neutron scattering.

a Specific heat showing two transitions at T_N1 and T_N2, with reference data from the nonmagnetic analog LaTe₃³². b Below T_N1, where resistivity in the ac basal plane drops sharply, significant anisotropy ρ_c/ρ_a indicates (partial) gapping of electronic states along the c-axis. c Temperature dependence of magnetic scattering intensity for antiferromagnetic q_AFM and cycloidal q_cyc reflections, with Miller indices (HKL) = (0, 1, 0.5) and (0, 1, 0.207), respectively. Gray and green background shading mark Phases I and II, respectively. Error bars correspond to statistical uncertainties of Gaussian fits to the magnetic reflections. d Experimental geometry for polarized neutron scattering from layered DyTe₃ (gray plane, square net of Dy indicated). The scattering plane (blue) is spanned by wavevectors k_i, k_f of incoming and outgoing neutron beams, respectively. Separating spin flip (SF, red) and non-spin flip (NSF, blue) scattering intensities at the detector, we identify conical magnetic order (top). e Linescan in momentum space, with highlights for three types of reflections including a weak higher harmonic corresponding to 3 × q_cyc. f Simulation of magnetic intensity from magnetic structure model, corresponding to the linescan in (e), see “Methods”.