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Nature of native atomic defects in ${\mathrm{ZrTe}}_{5}$ and their impact on the low-energy electronic structure

Salzmann, Björn ; Pulkkinen, Aki ; Hildebrand, Baptiste ; Jaouen, Thomas ; Zhang, S. N. ; Martino, E. ; Li, Q. ; Gu, G. ; Berger, Helmuth ; Yazyev, O. V. ; Akrap, Ana ; Monney, Claude

In: Physical Review Materials, 2020, vol. 4, no. 11, p. 114201

Over the past decades, investigations of the anomalous low-energy electronic properties of ZrTe5 have reached a wide array of conclusions. An open question is the growth method's impact on the stoichiometry of ZrTe5 samples, especially given the very small density of states near its chemical potential. Here we report on high- resolution scanning tunneling microscopy and spectroscopy...