Poster:Twist angle monitored inhomogeneous magnetism in a van der Waals itinerant moiré ferromagnet

Abstarct: Two dimensional (2D) van der Waals (vdW) moire magnets are the next generation quantum materials which hold the possibilities to unlock unprecedented properties in the field of twistronics and spintronics on account of their strong electron correlations. Essentially, the strong electron correlations in twisted geometries of vdW layers have a central role in of manifestation of unusual magnetic properties such as skyrmions, noncollinear magnetic textures, moire Zeeman effect and many more. Hence, identification of ideal materials is of great importance for realization of such exotic quantum phenomena. Here, we showcase a new quantum mechanical phenomenon of twist regulated on-site magnetism in vdW bilayer consisting non-magnetic 1T-NbSe₂ and ferromagnetic 1T-VSe₂ monolayers at various twist angles. In particular, we observe appearance of inhomogeneous mixture of quenched and augmented magnetic moments per V and Nb atoms. The inhomogeneity in the magnetic moment per V and Nb atoms is strongly influenced by the twist angles, depicting a significant variation of the variance of the magnetic moments with twist angles. Moreover, we find prominent flat bands emerging at higher twist angles making the system more localizedlike allowing for such inhomogeneous behavior. The studied systems satisfy Stoner criterion for ferromagnetism and the findings reveals that local moments of the system can suitably be tuned with twist angles.