Intercalation of magnetic atoms into the van der Waals gaps of layered transition metal dichalcogenides offers an excellent platform to produce exotic physical properties. Here, we report a detailed study of magnetic and electrical transport properties of Co0.28TaS2. The temperature dependent resistivity measurements display anomalous upturn below 11 K, which persists in presence of magnetic field even up to 14 T. In the low temperature region, the resistivity upturn exhibits a unique T1/2 scaling behavior, which remains unchanged when an external magnetic field is applied. The T1/2 dependence of resistivity upturn is the hallmark of non-Fermi liquid state in orbital two-channel Kondo effect(2CK). This anomalous resistivity upturn in Co0.28TaS2 can be attributed to the orbital two-channel Kondo mechanism.
@article{arxiv.2407.10120,
title = {Anomalous resistivity upturn in Co intercalated TaS$_2$},
author = {Moumita Nandi and Surajit Dutta and A. Thamizhavel and S. K. Dhar},
journal= {arXiv preprint arXiv:2407.10120},
year = {2024}
}