{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,19]],"date-time":"2025-10-19T00:08:18Z","timestamp":1760832498963,"version":"build-2065373602"},"reference-count":123,"publisher":"MDPI AG","issue":"20","license":[{"start":{"date-parts":[[2025,10,16]],"date-time":"2025-10-16T00:00:00Z","timestamp":1760572800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Materials"],"abstract":"<jats:p>Motivated by the seminal discoveries in graphene, the exploration of novel physical phenomena in alternative two-dimensional (2D) materials has attracted tremendous attention. In this work, through theoretical investigation using first-principles calculations, we reveal that Mo-intercalated CrI3 bilayer exhibits ferromagnetic semiconductor behavior with a small easy-plane magnetocrystalline anisotropy energy (MAE) of 0.618 meV\/Cr(Mo) between (100) and (001) magnetizations. The spin\u2013orbit coupling (SOC) opens a narrow band gap at the Fermi level for both magnetization orientations with nonzero Chern number for realizing the quantum anomalous Hall effect (QAHE) in the former and with trivial topology in the latter. The small MAE implies the efficient experimental manipulation of magnetization between distinct topologies through an external magnetic field. Our findings provide compelling evidence that the QAHE in this system originates from the quantum spin Hall effect (QSHE), driven by intrinsic magnetism under broken time-reversal symmetry. These unique properties position Mo-intercalated CrI3 as a promising candidate for tunable spintronic applications.<\/jats:p>","DOI":"10.3390\/ma18204751","type":"journal-article","created":{"date-parts":[[2025,10,17]],"date-time":"2025-10-17T07:33:50Z","timestamp":1760686430000},"page":"4751","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Topological Phase Transition in Two-Dimensional Magnetic Material CrI3 Bilayer Intercalated with Mo"],"prefix":"10.3390","volume":"18","author":[{"given":"Chen-En","family":"Yin","sequence":"first","affiliation":[{"name":"Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Angus","family":"Huang","sequence":"additional","affiliation":[{"name":"Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2881-3826","authenticated-orcid":false,"given":"Horng-Tay","family":"Jeng","sequence":"additional","affiliation":[{"name":"Department of Physics, National Tsing Hua University, Hsinchu 30013, Taiwan"},{"name":"Physics Division, National Center for Theoretical Sciences, Taipei 10617, Taiwan"},{"name":"Institute of Physics, Academia Sinica, Taipei 11529, Taiwan"},{"name":"Research Center for Semiconductor Materials and Advanced Optics, Chung Yuan Christian University, Taoyuan 32031, Taiwan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,10,16]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"387","DOI":"10.1039\/C9TC04187G","article-title":"Recent developments in emerging two-dimensional materials and their applications","volume":"8","author":"Khan","year":"2020","journal-title":"J. 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