Putting a twist on spintronics

Abstract

Moiré patterns in van der Waal materials can be used for designing magnetic structures

A twist for tunable electronic and thermal transport properties of nanodevices

“…9 The manipulation of the bilayer symmetry by an angular mismatch results in novel properties, including, but not limited to, spin polarization effects, 10 ferroelectricity, 11 and chiral phonons 12 has shown potential for innovations in the fabrication of novel nanodevices, i.e. spintronics, 13 quantum bits, 14 and phononic devices. 15 Theoretically, it has been realized that crossed graphene nano-ribbons (GNRs) with large twisting values and strong suppression of the interlayer interaction, can acquire beam splitters and electron mirrors when integrated into nanodevices.…”

Prediction of Magnetic Skyrmions in A New Kind of Twisted Bilayer CrI$_3$

“…Theoretical studies have predicted that it also depends on the stacking structure [26][27][28], and a twisting may bring periodic magnetization domains with complex spin texture [29][30][31]; additional Dzyaloshinskii-Moriya (DM) interactions may further stabilize various magnetic skyrmions [32][33][34][35]. Compared with magnetic skyrmions in alloys [36][37][38], the magnetic skyrmions in TBCIs are much thinner, they reach the two-dimensional limit, and open up the field of spintwistronics [39].…”