Two-dimensional (2D) materials hosting magnetic orders have been discovered in 2016-2017. They have generated tremendous research activity in the past years, partly due to the opportunities they offer to explore low-dimensional on-lattice order physics, and also driven by the prospect for future applications in the field of spintronics. I will give a biased, rather general introduction to this field of research and some of its main current directions, and I will then focus on a particular class of these materials, Cr-based tellurides. Among this family is the 1T polymorph of CrTe2, a truly van der Waals compound exhibiting room temperature ferromagnetism (a rare property for a van der Waals crystals) discovered in Grenoble [1-4], which we are able to controllably and locally transform into other Cr-Te compounds with different magnetic properties [5].
[1] A. Purbawati et al., ACS Appl. Mater. Interf. 12, 30702 (2020)
[2] X. Sun et al., Nano Res. 13, 3358 (2020)
[3] F. Fabre et al., Phys. Rev. Materials 5, 034008 (2021)
[4] P. Kumar et al., Phys. Rev. Applied 18, L061002 (2022)
[5] A. Purbawati, S. Sarkar et al. ACS Appl. Electron. Mater. 5, 764 (2023)
Coffee and pastries will be served at 11:00 in the hall
Institut Néel, CNRS & Université Grenoble Alpes, Grenoble