Anomalous nuclear magnetic resonance spectra in Bi2Se3 nanowires

Article

关键词: SINGLE DIRAC CONE;    TOPOLOGICAL INSULATORS;    BI-209 NMR;    SURFACE;    BI2TE3;   

DOI  :  10.1103/PhysRevB.90.125121

来源: SCIE

【 摘 要 】

We report Bi-209 nuclear magnetic resonance spectra in nanowires and single crystals of Bi2Se3. Crystals were powdered to simulate the random orientation of the nanowires, and the spectra are compared with theoretical expectations derived via an orientational study of a single crystal. The nanowire spectra are consistent with the randomly oriented powders; however, we find an unusual suppression of signal intensity as a function of field orientation that may be associated with screening by surface currents.

【 授权许可】

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