Extremely Small Energy Gap in the Quasi-One-Dimensional Conducting Chain Compound SrNbO${}_{3.41}$

C. A. Kuntscher, S. Schuppler, P. Haas +7

Resistivity, optical, and angle-resolved photoemission experiments reveal unusual one-dimensional electronic properties of highly anisotropic SrNbO${}_{3.41}$. Along the conducting c…