Journal
RESULTS IN PHYSICS
Volume 19, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.rinp.2020.103573
Keywords
Double-layer core/shell graphene nanoribbon; Susceptibility; Phase diagrams; Multi-cycle hysteresis loops; Monte Carlo simulation
Funding
- General Project of Liaoning Provincial Department of Education, China [LJGD2019013]
- Innovation Talent Program in Sciences and Technologies for Young and Middle-aged Scientists of Shenyang City, China [RC200414]
- Liaoning BaiQianWan Talents Program, China
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Using Monte Carlo simulation, we examine the dynamic magnetic properties of a double-layer core/shell graphene nanoribbon which is subjected to a time-dependent oscillating magnetic field. The present system can display unique magnetic behaviors and abundant phase diagrams under the influence of various physical parameters including the exchange couplings, time-dependent oscillating magnetic field and temperature. We find that the exchange coupling can promote the unification of the spin direction and the stability of the system. The bias magnetic field and the amplitude of oscillating magnetic field have opposite effects on the phase transition temperature. In addition, much effort is also dedicated to the hysteresis behaviors of the system. Under certain parameters, the system can present interesting multi-cycle hysteresis behaviors which come from competition among several parameters.
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