Satyabrata Bera

1 Introduction Almost all materials (metals and semiconductors) have a single type of dominant charge carrier, either electrons or holes, along all crystallographic directions. This allows these materials to be easily classified as either n-type (electron dominant) or p-type (hole dominant).

The exploration of nontrivial transport phenomena associated with the interplay between magnetic order and spin-orbit coupling (SOC), particularly in van der Waals (vdW) systems, has gained a resurgence of interest due to their easy exfoliation, ideal for two-dimensional (2D) spintronics. We report the near room temperature quasi-2D ferromagnet, Fe4GeTe2 from the iron-based vdW family (FenGeTe2, n=3,4,5), exhibiting a large anomalous Hall conductivity (AHC), σxyA∼490Ω−1cm−1 at 2 K.