Evidence of intertwined pair density and charge density wave orders in UTe₂

The strongly correlated spin-triplet superconductor UTe₂ hosts an unusual magnetic-field-sensitive charge density wave (CDW) phase, positioning it as a compelling system for studying intertwined electronic orders. A central challenge is determining whether the observed charge modulations arise from a triplet pair density wave (PDW) order and, if so, how the anisotropic magnetic field response of triplet superconductivity is manifested in the CDW response. Here, using a scanning tunneling microscope equipped with a vector magnetic field, we systematically investigate the evolution and interrelation of distinct CDW orders. Complementing the previously identified incommensurate CDW peaks (q_i=1,2,3), we resolve an additional set of nondispersive modulations (p_i=1,2,3 and h_1,2) with distinct temperature and magnetic field dependencies. The p_i CDW peaks vanish near T_c, while the q_i peaks survive well above T_c but are progressively suppressed by magnetic field in an anisotropic manner. The critical fields of the q_i peaks mirror the directional hierarchy of H_c2, which suggests a PDW is present above the bulk T_c. This is consistent with a Landau free-energy picture where PDWs with wavevectors p_i form above the bulk T_c, leading to composite CDW orders with wavevector q_i. Below T_c, the coupling of PDWs and uniform superconductivity leads to the p_i CDWs. Together, these findings establish UTe₂ as a rare platform where both the parent PDW and descendant orders are directly resolved, enabling access to both the fundamental and emergent manifestations of PDW physics.