Unveiling the Exotic Magnetic Structure of Isotope-160Gd-enriched Kagome Metal

Kagome-lattice materials, composed of two-dimensional networks of corner-sharing triangles, have emerged as fertile platforms for exploring correlated and topological quantum phenomena. The interplay of charge density waves, magnetism, nematic order, and superconductivity provides unique opportunities to realize novel emergent states. Recently, GdTi3Bi4 has attracted particular attention for its exotic phenomena, including strong magnetic anisotropy, a one-third magnetization plateau, chirality-reversible stripe domain walls, bifurcated magnetic anisotropy with bi-oriented AFM order, and an unconventional charge spin intertwined density wave. Elucidating the origin of such unconventional density waves and their connection to anomalous transport is of fundamental importance. Our recent ARPES measurements reveal pronounced band folding, indicative of strong coupling between magnetism and electronic structure. Furthermore, transport experiments demonstrate that magnetic states can be tuned by direct current, leading to a previously unreported zero-resistance state, independently confirmed by repeated measurements. These results raise a key question of how the underlying magnetic textures and chirality evolve with temperature, magnetic field, and applied current. To address this, we propose neutron scattering studies on isotope-enriched single crystals, 160GdTi3Bi4, to directly resolve the magnetic structure.