Topological Defect Tuned Emergent Charge Density Wave States and Transport Properties in CuTe

ABSTRACT Topological defects play a central role in spontaneous symmetry breaking, profoundly influencing the order parameter and emergent states. These effects are particularly complex in low‐dimensional systems with strong electronic correlations and dimensional crossovers, necessitating detailed and sophisticated analyses. Using CuTe as a prototype, with charge density wave (CDW) states near room temperature (Tc = 335 K), this study reveals a novel CDW induced by topological defects, specifically CDW dislocations. Temperature‐dependent transmission electron microscopy was employed to visualize the emergence of this novel CDW at topological singularities, where the amplitude is significantly suppressed. The formation and melting of this CDW exhibit an unconventional, temperature‐dependent hysteresis near Tc, which is further corroborated by clearly observed anomalous hysteresis in electrical transport. This work offers a comprehensive picture of emergent CDW states in CuTe and paves the way for the potential application of CDW systems in information storage technologies.