Tailoring magnetic properties of Cr2Te3 via selective Se substitution

Magnetic two-dimensional (2D) heterostructures have garnered substantial attention due to their advantages in spintronic applications. However, obtaining a perfect interface is still challenging owing to unavoidable dislocations or a mismatch between different 2D magnets. In this work, a highly tunable magnetism has been achieved in Cr2Te3 via selective Se substitution, which is promising for overcoming the above issue. The magnetic ground state of Cr2(SexTe1−x)3 can be adjusted from canted-ferromagnetism (x = 0) to easy-axis collinear-ferromagnetism (x = 0.13), which is accompanied by a large coercivity of about 5800 Oe, and even to isotropic antiferromagnetism (x ≥ 0.25). First-principles calculations reveal that different ground states are mainly attributed to the variation of the interlayer exchange interaction J2. Thus, the Cr2(SexTe1−x)3, with controllable magnetism, is promising for constructing magnetic heterojunctions, where the magnetism on both sides of the interface can be flexibly tailored for diverse demands.

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Publication Details

Journal
Applied Physics Letters
Published
2025-11-10
DOI
https://doi.org/10.1063/5.0296038
Primary Topic
2D Materials and Applications
Type
article
Field-Weighted Citation Impact
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article

Tailoring magnetic properties of Cr2Te3 via selective Se substitution

Zhaocong Huang, Qingjie Guo, Layiq Zia, Churen Gui et al.
Applied Physics Letters
2D Materials and Applications
article

Tailoring magnetic properties of Cr2Te3 via selective Se substitution

Zhaocong Huang, Qingjie Guo, Layiq Zia, Churen Gui, Mingming Tian, Xingze Dai, Liang He, Ya Zhai, Jun Du, Tianyu Liu, Qian Chen, Wen Zhang, Wei Jiang, Bin Lu, Haijing Wu
article en

Abstract

Magnetic two-dimensional (2D) heterostructures have garnered substantial attention due to their advantages in spintronic applications. However, obtaining a perfect interface is still challenging owing to unavoidable dislocations or a mismatch between different 2D magnets. In this work, a highly tunable magnetism has been achieved in Cr2Te3 via selective Se substitution, which is promising for overcoming the above issue. The magnetic ground state of Cr2(SexTe1−x)3 can be adjusted from canted-ferromagnetism (x = 0) to easy-axis collinear-ferromagnetism (x = 0.13), which is accompanied by a large coercivity of about 5800 Oe, and even to isotropic antiferromagnetism (x ≥ 0.25). First-principles calculations reveal that different ground states are mainly attributed to the variation of the interlayer exchange interaction J2. Thus, the Cr2(SexTe1−x)3, with controllable magnetism, is promising for constructing magnetic heterojunctions, where the magnetism on both sides of the interface can be flexibly tailored for diverse demands.

Applied Physics LettersVol. 127(19)
Northwestern Polytechnical University (CN), Collaborative Innovation Center of Advanced Microstructures (CN), Changsha University of Science and Technology (CN), Southeast University (CN), Nanjing University (CN)
Openalex Percentile: Top 73%
2D Materials and Applications
DOISourceOpenAlex
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