Martino, EdoardoPutzke, CarstenKonig, MarkusMoll, Philip J. W.Berger, HelmuthLeBoeuf, DavidLeroux, MaximeProust, CyrilAkrap, AnaKirmse, HolmKoch, ChristophZhang, ShengNanWu, QuanShengYazyev, Oleg V.Forro, LaszloSemeniuk, Konstantin2021-12-042021-12-042021-12-042021-11-1810.1038/s41699-021-00265-6https://infoscience.epfl.ch/handle/20.500.14299/183664WOS:000720426000001Crystalline defects can modify quantum interactions in solids, causing unintuitive, even favourable, properties such as quantum Hall effect or superconducting vortex pinning. Here we present another example of this notion-an unexpected unidirectional Kondo scattering in single crystals of 2H-NbS2. This manifests as a pronounced low-temperature enhancement in the out-of-plane resistivity and thermopower below 40 K, hidden for the in-plane charge transport. The anomaly can be suppressed by the c-axis-oriented magnetic field, but is unaffected by field applied along the planes. The magnetic moments originate from layers of 1T-NbS2, which inevitably form during the growth, undergoing a charge-density-wave reconstruction with each superlattice cell (David-star-shaped cluster of Nb atoms) hosting a localised spin. Our results demonstrate the unique and highly anisotropic response of a spontaneously formed Kondo-lattice heterostructure, intercalated in a layered conductor.Nanoscience & NanotechnologyMaterials Science, MultidisciplinaryPhysics, AppliedScience & Technology - Other TopicsMaterials SciencePhysicscritical-fieldtemperaturepressuresuperconductivityresistivityanisotropy2h-nbs2text::journal::journal article::research article