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Static studies demonstrate KCrTe2 transitions to easy-peel 1T-CrTe2, suggesting improved ferromagnetic properties.
Two-dimensional ferromagnets are highly attractive for spintronic applications and chromium-telluride compounds form one of the most diverse families in this field. While the layered 1T-CrTe₂ has been studied extensively for its high Curie temperature, strong anisotropy, and large magnetic moments, its parent compound KCrTe₂ has received almost no systematic attention. Large crystals of KCrTe₂ were grown by solid-state methods. Large 1T-CrTe₂ crystals were obtained via deintercalation of K from KCrTe₂. KCrTe₂ exhibited an antiferromagnetic transition around 87 K, which resides between LiCrTe₂ and NaCrTe₂. The chemical process from KCrTe₂ to 1T-CrTe₂ was studied by static studies. The complete removal of K within KCrTe₂ helps make 1T-CrTe₂ easy fabrication of large thin flakes (the easy-peel 1T-CrTe₂), which were studied using ferromagnetic resonance spectroscopy (FMR). FMR was employed to study the magnetization dynamics of 1T-CrTe₂ crystals, which verified that 1T-CrTe₂ crystals exhibited ferromagnetic response at room temperature.
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Prasad et al. (2026) studied this question.
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