1. Study on magnetic and thermodynamic characteristics of core-shell graphene nanoribbon.
- Author
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Si, Nan, Wang, Jiu-Ming, Guo, An-Bang, Zhang, Fan, Zhang, Feng-Ge, and Jiang, Wei
- Subjects
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MAGNETIC anisotropy , *FERRIMAGNETIC materials , *MAGNETIC properties , *ISING model , *MAGNETIC fields , *MAGNETIZATION - Abstract
Magnetic and thermodynamic characteristics of Ising ferrimagnetic core-shell graphene nanoribbon with core spin −2 and shell spin 5/2 were investigated by using the effective field theory with correlations. Some characteristic phenomena have been found in the system. Different saturation magnetization and P-type and Q-type curves were found on the magnetization curves. At low temperature, the magnetization has obvious magnetization platform. Due to the results of exchange coupling, anisotropy and external magnetic field competition, the m 5 -m 7 sublattice magnetization platform presents a concave shape. The results obtained may have potential applications in the design of nanodevices. • Ising model of core-shell structure graphene nanoribbon is suggested. • Magnetic properties of the system have been studied. • Spin-flip or spin-flop has been found on the magnetization curves. [ABSTRACT FROM AUTHOR]
- Published
- 2020
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