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Thermal spin transport properties of magnetic C28 monomolecular devices

LI QIANG1,2,* , YANG YONG-MING1,2, REN DA-HUA3, MENG GAO-XIANG1,2

Affiliation

  1. Schoolof Advanced Materials and Mechatronic Engineering, Hubei Minzu University, Enshi445000, China
  2. nstitute of University-industry Cooperation for Advanced Material Forming and Equipment, Hubei Minzu University, Enshi 445000, China
  3. Schoolof Information Engineering, Hubei Minzu University, Enshi445000, China

Abstract

In this paper, we conduct a theoretical investigation on the thermal spin transport properties of three devices based on magnetic C28monomolecular, using the non-equilibrium Green’s function combined with density functional theory. By applying a temperature field, we observe that these devices lead to a spin-dependent Seebeck effect; some devices also embody spin-dependent Seebeck diode effectand negative differential resistance effect. The physical mechanism was explained using the Fermi-Dirac distribution and spin transmission spectrum. These interesting effects suggest that these three devices can be used as new spin nanodevices.

Keywords

Monomolecular device, Spin-dependent Seebeck effect, Spin-dependent Seebeck diode effect, Negative differential resistance effec.

Submitted at: April 13, 2020
Accepted at: June 11, 2021

Citation

LI QIANG, YANG YONG-MING, REN DA-HUA, MENG GAO-XIANG, Thermal spin transport properties of magnetic C28 monomolecular devices, Journal of Optoelectronics and Advanced Materials Vol. 23, Iss. 5-6, pp. 299-304 (2021)