Rashba splitting in bilayer transition metal dichalcogenides controlled by electronic ferroelectricity

Spin–Orbit Coupling in 2D Semiconductors: A Theoretical Perspective

“…The Rashba effect should be controlled effectively for practical applications. In the following sections, we review two widely used manipulating methods (the external electric field ,,, and strain engineering) − ,,,,, in detail and briefly present several methods (charge doping, , interlayer interactions, ,,, proximity effect of substrates, − and external magnetic field) ,− (Figure ). The origin of manipulations of the Rashba Effect can be derived from the mechanism of SOC.…”

Tunable electronic and magnetic properties of monolayer and bilayer Janus Cr2Cl3I3: a first-principles study

“…41,43,46 A deep understanding of the intrinsic physical mechanism of Janus chromium trihalides and practical methods to control their spin states are highly required. 48,49 Moreover, strain 33,50 and stacking order 19,33,[48][49][50][51][52] are widely used methods to modulate the tunneling magneto-resistances, 29,53 magneto-optical effects, 54 light scattering 31 and topological properties of materials. 15,55,56 In this article, using first-principles methods with vdW interaction corrections, [57][58][59] we investigate the geometric, magnetic, and electronic properties and stability of ML Janus Cr 2 Cl 3 I 3 using hybrid functional-HSE06.…”

Switchable Rashba anisotropy in layered hybrid organic–inorganic perovskite by hybrid improper ferroelectricity

“…A strong spin-orbit coupling (SOC) involving the heavy Pb atom and its surrounding halogens, combined with the absence of inversion symmetry in the crystal structure, can lead to a Rashba effect which, in turn, can impact photovoltaic performance [20][21][22][23][24] . Non-centrosymmetry provides a spin-degenerate band with the possibility to split two reversely spin-polarized states described by the equation:…”

“…[14][15][16][17][18][19] A strong spin-orbit coupling (SOC) involving the heavy Pb atom and its surrounding halogens, combined with the absence of an inversion symmetry in the crystal structure, can lead to a Rashba effect and thus impact photovoltaic performance. [20][21][22][23] Non-centrosymmetry provides a spin-degenerate band with the possibility to split two reversely spin-polarized states, and the equation of 𝐸𝐸 ± (𝑘𝑘) = ℏ 2 𝑘𝑘 2 2𝑚𝑚 ± 𝛼𝛼 𝑅𝑅 |𝑘𝑘| can be used to clarify the dispersion relation of electrons (or/and holes), in which 𝛼𝛼 𝑅𝑅 is the Rashba splitting parameter. 24,25 The coexistence of ferroelectricity and a Rashba effect is believed to mediate interesting effects, such as the switching of spin-texture chirality with an electric-polarization reversal.…”