Abstract:

The emergence of two-dimensional (2D) materials had drawn great attention due to its fascinating physical properties and potential applications for future nanoelectronic devices. Two-dimensional ferromagnetism in Cr₂Ge₂Te₆ (CGT) had been demonstrated, however, for two-dimensional CGT, there had been a lack of research on electron transport properties and electric field effects. Therefore, CGT ferromagnetic sheeted with a thickness of only a few nanometers had been prepared and identified, which provided a very important piece for the van der Waals structure composed of various 2D materials. We further demonstrated the large modulation of the channel resistance of 2D CGT devices by the electric field effect. The experimental results illustrate the gate voltage tunability of 2D CGT and the potential of ferromagnetic 2D material CGT as a new functional quantum material for future use.

Key words: Two-dimensional material, nanoelectronics, ferromagnetic two-dimensional material, electric field effect, voltage adjustable