Assanai SuwanvarangkoonBumned SoodchomshomI. Ming TangRassmidara HoonsawatKasetsart UniversityMahidol UniversityThailand Ministry of Education2018-11-092018-11-092014-01-01Journal of Superconductivity and Novel Magnetism. Vol.28, No.1 (2014), 41-5115571947155719392-s2.0-84925504550https://repository.li.mahidol.ac.th/handle/123456789/34121© 2014, Springer Science+Business Media New York. The property of quasiparticle tunneling on the surface of topological insulator (TI) ferromagnet-insulator-superconductor (FM-I-SC) junction is investigated. The virtual Andreev reflection (VAR) takes place when the wave vectors of electron and hole-like quasiparticles in FM are different due to gauge filed. We find that the VAR exhibits anisotropy in contrast to those in conventional and graphene-based junctions, because of gauge field on the surface of TI. The current in the junction can be carried by pure VAR, by tuning in-plane magnetic field. We also find that, the perfect linear slope of the conductance under varying in-plane magnetic fields is predicted, applicable for TI-based spintronic devices.Mahidol UniversityMaterials SciencePhysics and AstronomyArticleSCOPUS10.1007/s10948-014-2856-x