Thermal Spin Transport Properties of the Li Atom Doped C28 Monomolecular Device

Abstract

Abstract: Thermal spin transport properties of the Li atom doped C₂₈ monomolecular device were simulated by using first-principle study combined with density functional theory. By applying a temperature field, the upper and lower spins provide transport channels for the electrons and holes in the Li doped C₂₈ monomolecular device, respectively. The thermal spin current increases with temperature increasing in the MJ₁ and MJ₃, but the thermal spin current increases then decrease with temperature increasing in the MJ₂. The spin-dependent Seebeck effect appears in the Li doped C₂₈ monomolecular device, and the negative differential resistance effect appears in the MJ₂. The physical mechanism was explained using the Fermi-Dirac distribution and spin transmission spectrum. These interesting effects suggest that the Li atom doped C₂₈ monomolecular device can be used as new spin nanodevices.

Key words: C₂₈, fullerene, doped molecular, Seebeck effect, molecular device, thermal spin, transport property, first-principle study

CLC Number:

O469

WENG Zhulin. Thermal Spin Transport Properties of the Li Atom Doped C₂₈ Monomolecular Device[J]. JOURNAL OF SYNTHETIC CRYSTALS, 2022, 51(1): 98-103.

References

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Thermal Spin Transport Properties of the Li Atom Doped C₂₈ Monomolecular Device

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