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- W2610010462 abstract "We implement a theoretical study of the geometry parameters, binding energies, electronic and magnetic properties of 4d series transition metals substituted graphene. Based on a hybridization model, the variations of binding energies and magnetic moments size can be well understood. According to the occupation of different vacancy-metal hybridized electronic states, the substituted systems can be divided into three types: (i) for Y and Zr, all the bonding states are completely occupied, and the magnetic moment is zero; (ii) for Nb, Mo and Tc, nonbonding states become occupied, which induce a strong localized magnetic moment with d character of 1 μB, 2 μB and 1 μB, respectively; (iii) for Ru, Rh and Pd, the magnetic moment oscillates between 0 and 1 μB as the antibonding state become occupied. In addition, we found that the Y- and Rh-substituted graphene exhibit metallic behavior, and the semiconducting natures were found in Zr-, Ru- and Pd-substituted systems. More interestingly, half-metallic state were predicted in Nb- and Tc-substituted graphene, while spin-polarized semiconducting state is realized in Mo-substituted system. The Curie temperature of about 83, 354 and 36 K was estimated for Nb-, Mo- and Tc-substituted systems in the mean-field approximation at impurity concentration 3.125%." @default.
- W2610010462 created "2017-05-05" @default.
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- W2610010462 date "2017-08-01" @default.
- W2610010462 modified "2023-09-30" @default.
- W2610010462 title "Electronic and magnetic properties of 4d series transition metal substituted graphene: A first-principles study" @default.
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- W2610010462 doi "https://doi.org/10.1016/j.carbon.2017.04.060" @default.
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