Magnetoconductance of a spin polarized electron along a curved one-dimensional wire


Proceedings of the 32nd Samahang Pisika ng Pilipinas Physics Congress, University of the Philippines Diliman, Quezon City, 17–20 Oct 2014, SPP2014-1A-6.


In this paper, we revisit our transport studies on the motion of a spin-polarized electron along a curved quantum wire under the presence of a uniform perpendicular magnetic field B and both the Rashba and Dresselhaus spin-orbit couplings (SOCs). Then from the previously derived output transmission coefficients, we numerically determine the magnetoconductance of the electron motion along the curved wire. Our results agree with our earlier reports that for large effective SOCs, the effects of B on spin switching is reduced. Moreover, we found that for a given energy E, the desired high MC ratio can be achieved by tuning B. Finally, with large R the MC reduces significantly due to adiabatic transport.