Impossibility of increasing Néel temperature in zigzag graphene nanoribbon by electric field and carrier doping

Realizing pure spin current by the photogalvanic effect in armchair graphene nanoribbons with nano-constriction engineering

“…The Néel temperature of the device will be about 100 K based on the theoretical prediction of the Néel temperature of zigzag-edged graphene nanoribbons. 80…”

“…The Ne ´el temperature of the device will be about 100 K based on the theoretical prediction of the Ne ´el temperature of zigzag-edged graphene nanoribbons. 80 Next, we investigate the photocurrents induced by the PGE in both systems. Firstly, the spin-dependent photocurrents in the two systems vary with photon energy when they are illuminated by linearly polarized light at a polarization angle of y = 01.…”

Tuning the magnetic states in AA-stacked bilayer zigzag graphene nanoribbons

“…Even though the ground state of ZGNR is well-known as an AFM state, other configurations such as ferromagnetic (FM) state or spiral state can be useful for some electronic devices. As for an AFM ground state, it can be used to discuss the spin-waves excitation to predict the spin stiffness or critical temperature [19][20][21][22]. Those two properties are very useful to design spintronic devices, which will work at room temperature.…”