Resistively detected NMR as a probe of the topological nature of conducting edge/surface states

  title={Resistively detected NMR as a probe of the topological nature of conducting edge/surface states},
  author={Zekun Zhuang and V. F. Mitrovi'c and J. B. Marston},
  journal={Physical Review B},
Electron spins in edge or surface modes of topological insulators (TIs) with strong spin-orbit coupling cannot be directly manipulated with microwaves due to the locking of electron spin to its momentum. We show by contrast that a resistively detected nuclear magnetic resonance (RDNMR) based technique can be used to probe the helical nature of surface conducting states. In such experiments, one applies a radio frequency (RF) field to reorient nuclear spins that then couple to electronic spins… Expand

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