Presentation Information
[11a-B32-8]Intercalant-ordering-induced valence-band reconstruction in van der Waals ferromagnet Cr3Te4
〇MASAKI KOBAYASHI1, Kanta Endo2, Kosuke Takiguchi1, Tom Ichiba3, Kenta Hongo3, Yoshitaka Taniyasu1, Masaki Nakano4 (1.BRL, NTT, Inc., 2.Univ. of Tokyo, 3.JAIST, 4.Shibaura Inst. Tech.)
Keywords:
Layered material,Photoemission spectroscopy,Ferromagnet
In two-dimensional van der Waals ferromagnets, the electronic states and magnetic properties can be controlled by inserting magnetic ions between layers. It has been reported that post-growth annealing of Cr3Te4 thin films leads to an increase in the Curie temperature, changes in magnetic anisotropy, and the emergence of the topological Hall effect. In this study, we report the results of investigating the element-selective chemical state and valence band structure of Cr3Te4 thin films fabricated by molecular beam epitaxy and annealed at different temperatures, using hard X-ray photoelectron spectroscopy.