Negative differential resistance and quantum oscillations in FeSb2 with embedded antimony*

Project supported by Guangdong Innovative and Entrepreneurial Research Team Program, China (Grant No. 2016ZT06D348), the National Natural Science Foundation of China (Grant No. 11874193), and the Shenzhen Fundamental Subject Research Program, China (Grant Nos. JCYJ20170817110751776 and JCYJ20170307105434022). The work at Brookhaven is supported by the US Department of Energy, Office of Basic Energy Sciences as part of the Computational Material Science Program (material synthesis).

Tang Fangdong1, 2, Du Qianheng3, 4, Petrovic Cedomir3, 4, Zhang Wei1, He Mingquan5, Zhang Liyuan2, †
       

(a) Temperature dependence of the resistance R(T) for sample 5 using the temperature readings recorded by a thermometer attached onto sample surface. Inset: a photograph of the experimental setup. (b) The temperatures recorded on the thermometer as a function of bias current T(I) at various base temperatures. (c) Comparison between the recreated IV curves (lines) using R(T), T(I) shown in panels (a) and (b) and the IV results obtained from direct measurements (points). See the main text for details.