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. 2016 Dec 12;7:13762. doi: 10.1038/ncomms13762

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Copyright © 2016, The Author(s)

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Tunnelling spectra measured at magnetic fields up to 12 T and 0.35 K on the top of (a) site #C away from any impurity and (b) site #A atop a small impurity. (c) Evolution of dI/dV-curves from 0.35 K to 20 K. To compare the data, a small linear background is subtracted from the raw data. (d) Difference tunnelling conductance after subtracting the g(V)-data measured at 20 K. (e) Temperature dependence of the intensity of peak (iii). Results for intensities by Yee et al.³⁶ (blue) and spectral weights by Ruan et al.³⁸ (green) are shown for comparison (right axes). Curves are offset for clarity in (a–d). V_b=30 mV, I_sp=100 pA, V_mod=0.3 mV.