▎ 摘　　要

In this paper, the effect of ferromagnetic barrier (F-B) on the thermal conductance of graphene-based normal metal/ferromagnetic barrier/s- and d-wave superconductor junction has been studied theoretically. The results show that the exchange energy (h) in the ferromagnetic barrier has a strong effect on the amplitude, phase and period of the thermal conductance oscillations in terms of the F-B length. Also, we have discussed novel thermal conductance oscillations in a graphene-based NFBS junction that happened for maximum superconducting orientation (alpha = pi/4. This finding is arisen from the quantum nature of interference between spin states, up and down quasiparticles in F-B region. Interestingly, at alpha = pi/4 the h has also the highest effect on the thermal conductance and by increasing the exchange energy h, the thermal conductance enhances at this angle. The exchange energy h also affects the thermal conductance as a function of temperature for both s- and d-wave superconductor. At last, we propose an experimental setup to detect our predicted effects. (C) 2014 Elsevier Ltd. All rights reserved.