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Article Dans Une Revue Applied Physics Letters Année : 2020

Giant thermal magnetoresistance driven by graphene magnetoplasmon

Résumé

In this work, we have predicted a giant thermal magnetoresistance for the thermal photon transport based on the tunable magnetoplasmon of graphene. By applying an external magnetic field, we find that the heat flux can be modulated by approximately three orders of magnitude. Accordingly, both negative and giant relative thermal magnetoresistance ratios are achieved for magnetic fields with a maximum strength of 4 Tesla. This effect is mainly caused by the suppression and enhancement of scattering interactions mediated by a graphene magnetoplasmon. Specifically, it has never been achieved before for nanoparticles, which have no response to magnetic fields. The effect is remarkable at these reasonable strengths of fields and, thus, has considerable significance for real-life applications. It is also expected to enable technological advances for thermal measurement-based magnetic sensors and magnetically thermal management. The support of this work by the National Natural Science Foundation of China (Nos. 51976044 and 51806047) is gratefully acknowledged. The Heilongjiang Touyan Innovation Team Program is gratefully acknowledged. M.A. acknowledges support from the Institute Universitaire de France, Paris, France (UE).
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Dates et versions

hal-02966760 , version 1 (14-10-2020)

Identifiants

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Ming-Jian He, Hong Qi, Yan-Xiong Su, Ya-Tao Ren, Yi-Jun Zhao, et al.. Giant thermal magnetoresistance driven by graphene magnetoplasmon. Applied Physics Letters, 2020, 117 (11), pp.113104. ⟨10.1063/5.0022261⟩. ⟨hal-02966760⟩
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