AUTHOR=Feng Qian-Qian , Guo Jun-Jie , Zhong Mian-Zeng , Luo Zi-Yan , Li Bo , Wang Xi-Guang , Nie Yao-Zhuang , Xia Qing-Lin , Guo Guang-Hua 

TITLE=Magnetic properties of Fe intercalation FexTaSe2

JOURNAL=Frontiers in Physics

VOLUME=12

YEAR=2024

URL=https://www.frontiersin.org/journals/physics/articles/10.3389/fphy.2024.1371171

DOI=10.3389/fphy.2024.1371171

ISSN=2296-424X

ABSTRACT=<p>Intercalation of transition metal dichalcogenides with magnetic elements has been the subject of increasing research interest, aiming to explore novel magnetic materials with anisotropy and spin-orbit coupling. In this paper, two magnetic samples with varying Fe content have been prepared using different growth conditions via the chemical vapor transport method. A comprehensive investigation of the magnetic properties of the materials has been conducted using the Physical Property Measurement System (PPMS, EvercoolⅡ-9T, Quantum Design). The results reveal distinct features in the studied materials. Fe<sub>0.12</sub>TaSe<sub>2</sub> exhibits significant ferromagnetism with a Curie transition temperature of 50 K. However, its in-plane magnetism is weak and no significant hysteresis loop is observed below the Curie temperature. On the other hand, Fe<sub>0.25</sub>TaSe<sub>2</sub> exhibits antiferromagnetism without any hysteresis loop and has a Néel temperature up to 130 K. This finding is quite different from the intercalated iron in Fe<sub>x</sub>TaS<sub>2</sub>, where only an antiferromagnetic state occurs with x larger than 0.4. Our study thus provides updated insights into the magnetic properties of this new system and serves as a reference for future investigations of TaSe2 compounds with varying iron content.</p>