Intrinsic spin-relaxation induced negative tunnel magnetoresistance in a single-molecule magnet

@article{Xie2013IntrinsicSI,
  title={Intrinsic spin-relaxation induced negative tunnel magnetoresistance in a single-molecule magnet},
  author={Haiqing Xie and Qiang Wang and Haibin Xue and Hu-jun Jiao and J.-Q. Liang},
  journal={Journal of Applied Physics},
  year={2013},
  volume={113},
  pages={213708}
}
We investigate theoretically the effects of intrinsic spin-relaxation on the spin-dependent transport through a single-molecule magnet (SMM), which is weakly coupled to ferromagnetic leads. The tunnel magnetoresistance (TMR) is obtained by means of the rate-equation approach including not only the sequential but also the cotunneling processes. It is shown that the TMR is strongly suppressed by the fast spin-relaxation in the sequential region and can vary from a large positive to slight… Expand
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