Properties of pseudospin polarization on a graphene-based spin singlet superconducting junction |
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Authors: | Jia Shuan-Wen Wang Jun-Tao Yang Yan-Ling and Bai Chun-Xu |
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Institution: | [1]School of Physics, Anyang Normal University, Anyang 455000, China [2]Department of Mathematics, Henan Institute of Science and Technology, Xinxiang 453000, China |
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Abstract: | We investigate theoretically transport characteristics in a graphene-based pseudospinmagnet/superconductor junction, including the s-wave and the d-wave pairing symmetry potential in the superconducting region. It is found that the pseudospin polarization, in sharp contrast to spin polarization in the graphene-based ferromagnet/superconductor junction, holds no influence on the specular Andreev reflection for a negligible Fermi energy. Furthermore, the Fano factor is crucially affected by the zero bias state. Therefore, we suggest here that the findings could shed light on the realization of graphene-based pseudospintronics devices and provide a new way to detect the specular Andreev reflection and the zero bias state in the actual experiments. |
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Keywords: | graphene anisotropic pairing symmetry pseudospin polarization |
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