Atomically-thin, layered two dimensional (2D) van der Waals materials have attracted considerableattention due to their emerging properties from electronic and optical viewpoints, while 2D ferromagnetism,which plays an important role on 2D spintronics, has been unexplored until recent studies on exfoliatedCr_2Ge_2Te_6 [1] and CrI_3 [2]. Combining ferromagnetic properties with electronic and optical properties couldopen huge application opportunities in magnetoelectric and magneto-optics fields. Transitional-metaldichalcogenides (TMDCs) are one of most promising candidates, which already showed great potential inelectronic and optoelectronic applications. Recent study has also revealed possible room temperatureferromagnetism in VSe2 [3], while there are still many discussions and enigma on ferromagnetism in TMDCs.We have been focusing on exploring novel properties in TMDC thin films using molecular-beam epitaxy(MBE) method (Fig. 1). Recently we succeeded in growing atomically-thin chromium telluride epitaxial thinfilms on insulating sapphire substrates by MBE (Fig. 2). In this presentation, we will introduce our growthrecipe, structure identification, then discuss structure, transport and magnetic properties of those MBE-grownchromium telluride epitaxial thin films.
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