Peculiar half-metallic state in zigzag nanoribbons ofMoS2: Spin filtering
نویسندگان
چکیده
منابع مشابه
Spin Filtering in Zigzag Graphene Nanoribbons Using 7-5 Defects
Electrons carry both charge and spin. The processing of information in conventional electronic devices is based only on the electronic charge. Spin electronics, or spintronics, uses the spin of electrons as another degree of freedom [1]. Materials with zero band gap form the basis for spintronic devices and show superior performance in comparison with non-zero band gap materials [1]. Graphene, ...
متن کاملEnhanced half-metallicity in edge-oxidized zigzag graphene nanoribbons.
We present a comprehensive theoretical study of the electronic properties and relative stabilities of edge-oxidized zigzag graphene nanoribbons. The oxidation schemes considered include hydroxyl, lactone, ketone, and ether groups. Using screened exchange density functional theory, we show that these oxidized ribbons are more stable than hydrogen-terminated nanoribbons except for the case of the...
متن کاملInhomogeneous strain-induced half-metallicity in bent zigzag graphene nanoribbons
Realization of half-metallicity in low dimensional materials is a fundamental challenge for nano spintronics, which is a critical component for next-generation information technology. Using the method of generalized Bloch theorem, we show that an in-plane bending can induce inhomogeneous strains, which in turn lead to spin-splitting in zigzag graphene nanoribbons and results in the highly desir...
متن کاملPerfect spin filtering effect and negative differential behavior in phosphorus-doped zigzag graphene nanoribbons
On the basis of the density functional theory combined with the Keldysh nonequilibrium Green's function method, we investigate the spin-dependent transport properties of single-edge phosphorus-doped ZGNR systems with different widths. The results show a perfect spin filtering effect reaching 100% at a wide bias range in both parallel (P) and antiparallel (AP) spin configurations for all systems...
متن کاملSpin currents and filtering behavior in zigzag graphene nanoribbons with adsorbed molybdenum chains.
By means of density-functional-theoretic calculations, we investigated the structural, electronic and transport properties of hydrogen-passivated zigzag graphene nanoribbons (ZGNRs) on which a one-atom-thick Mo chain was adsorbed (with or without one or two missing atoms), or in which the passivating hydrogen atoms were replaced by Mo atoms. Mo-passivated ZGNRs proved to be nonmagnetic. ZGNRs w...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Physical Review B
سال: 2016
ISSN: 2469-9950,2469-9969
DOI: 10.1103/physrevb.94.125412