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arXiv · 1409.0781

Anomalous nuclear magnetic resonance spectra in Bi$_2$Se$_3$ nanowires

D. M. Nisson·A. P. Dioguardi·X. Peng·D. Yu·N. J. Curro
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Abstract

We report $^{209}$Bi nuclear magnetic resonance (NMR) spectra of in nanowires and single crystals of Bi$_2$Se$_3$. 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.

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D. M. Nisson, A. P. Dioguardi, X. Peng, D. Yu, N. J. Curro. 2014-09-02. Anomalous nuclear magnetic resonance spectra in Bi$_2$Se$_3$ nanowires. https://doi.org/10.1103/physrevb.90.125121

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