Description

The giant magnetoresistance (GMR) of a point contact between a Co/Cu multilayer and a superconductor tip varies for different bias voltage. Direct measurement of spin polarization by Andreev reflection spectroscopy

The giant magnetoresistance (GMR) of a point contact between a Co/Cu multilayer and a superconductor tip varies for different bias voltage. Direct measurement of spin polarization by Andreev reflection spectroscopy reveals that the GMR change is due to a change in spin polarization. This work demonstrates that the GMR structure can be utilized as a spin source and that the spin polarization can be continuously controlled by using an external magnetic field.

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Date Created
  • 2016-05-23
Resource Type
  • Text
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    Identifier
    • Digital object identifier: 10.1063/1.4952437
    • Identifier Type
      International standard serial number
      Identifier Value
      0003-6951
    • Identifier Type
      International standard serial number
      Identifier Value
      1077-3118
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    Gifford, J. A., Zhao, G. J., Li, B. C., Tracy, B. D., Zhang, J., Kim, D. R., . . . Chen, T. Y. (2016). Continuous control of spin polarization using a magnetic field. Applied Physics Letters, 108(21), 212401. doi:10.1063/1.4952437

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