Hall-effect in the MnBi_2Te_4 crystal using silicon nitride nanomembrane via contacts

Abstract

Utilizing an interplay between band topology and intrinsic magnetism, the two-dimensional van der Waals (vdW) system MnBi_2Te_4 provides an ideal platform for realizing exotic quantum phenomena and offers great opportunities in the emerging field of antiferromagnetic spintronic technology. Yet, the fabrication of MnBi_2Te_4-based nanodevices is hindered by the high sensitivity of this material, which quickly degrades when exposed to air or to elevated temperatures. Here, we demonstrate an alternative route of fabricating vdW-MnBi_2Te_4-based electronic devices using the cryogenic dry transfer of a printable circuit embedded in an inorganic silicon nitride membrane. The electrical connections between the thin crystal and the top surface of the membrane are established through via contacts. Our magnetotransport study reveals that this innovative via contact approach enables exploring the MnBi_2Te_4-like sensitive 2D materials and engineering synthetic heterostructures as well as complex circuits based on the two-dimensional vdW systems.

References in corpus (12)

• Quantized Anomalous Hall Effect in Magnetic Topological Insulators
• Trajectory of Anomalous Hall Effect toward the Quantized State in a Ferromagnetic Topological Insulator
• Scale-Invariant Dissipationless Chiral Transport in Magnetic Topological Insulators beyond the Two-Dimensional Limit
• Progress and prospects in magnetic topological materials
• The development of ferromagnetism in the doped topological insulator Bi2-xMnxTe3
• Crystal growth and magnetic structure of MnBi2Te4
• Precise quantization of anomalous Hall effect near zero magnetic field
• Intertwined Topological and Magnetic Orders in Atomically Thin Chern Insulator MnBi2Te4
• Robust A-type order and spin-flop transition on the surface of the antiferromagnetic topological insulator MnBi${}_2$Te${}_4$
• Nanodevices engineering and spin transport properties of MnBi2Te4 monolayer
• Emergent Interfacial Superconductivity between Twisted Cuprate Superconductors
• 2D high temperature superconductor integration in contact printed circuit boards