Gate-Tunable Unconventional Unidirectional Magnetoresistance in Chiral Tellurium Nanosheets.
Chiral materials, which lack inversion and mirror symmetries, host spin textures in momentum space that give rise to current-induced spin polarization. In bulk Te, symmetry restricts the induced spin polarization to the chiral axis, allowing unidirectional magnetoresistance (UMR) only when the magnetic field is aligned...