Materials with perpendicular magnetic anisotropy (PMA) effect with high Curie temperature (TC) is essential in applications. In this work, Cr2Te3 thin films showing PMA with TC ranging from 165 K to 295 K were successfully grown on Al2O3 by the molecular beam epitaxy (MBE) technique. The structural analysis, magneto-transport and magnetic characterizations were conducted to study the physical origin of the improved TC. In particular, ferromagnetic (FM) and antiferromagnetic (AFM) ordering competition were investigated. A phenomenological model based on the coupling degree between FM and AFM ordering was proposed to explain the observed TC enhancement. Our findings indicate that the TC of Cr2Te3 thin film can be tuned, which make it hold the potential for various magnetic applications.
@article{arxiv.1905.10776,
title = {Molecular Beam Epitaxy Grown $Cr_2Te_3$ Thin Films with Tunable Curie Temperatures},
author = {Hongxi Li and Linjing Wang and Tao Yu and Liang Zhou and Yang Qiu and Hongtao He and Fei Ye and Iam Keong Sou and Gan Wang},
journal= {arXiv preprint arXiv:1905.10776},
year = {2019}
}