We discuss the recently discovered system SrCu2(BO3)2, a realization of an exactly solvable model proposed two decades earlier. We propose its interpretation as a Mott Hubbard insulator. The possible superconducting phase arising from doping is explored, and its nature as well as its importance for testing the RVB theory of superconductivity are discussed.
@article{arxiv.cond-mat/0204228,
title = {$Sr Cu_2 (BO_3)_2$: A Unique Mott Hubbard Insulator},
author = {B Sriram Shastry and Brijesh Kumar},
journal= {arXiv preprint arXiv:cond-mat/0204228},
year = {2009}
}
Comments
18 pages,7 figures, Based on Invited Talk at 16th Nishinomiya Yukawa memorial symposium, Nov 13-14, Nishinomiya. To appear in Progress in Theoretical Physics, Suppliment 145(2002)