Resistivity, optical, and angle-resolved photoemission experiments reveal unusual one-dimensional electronic properties of highly anisotropic SrNbO3.41. Along the conducting chain direction, we find an extremely small energy gap of only a few meV at the Fermi level. A discussion in terms of typical 1D instabilities (Peierls, Mott-Hubbard) shows that neither seems to provide a satisfactory explanation for the unique properties of SrNbO3.41.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1103/PhysRevLett.89.236403 | DOI Listing |
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!