$Sr Cu_2 (BO_3)_2$: A Unique Mott Hubbard Insulator

Details $Sr Cu_2 (BO_3)_2$: A Unique Mott Hubbard Insulator $Sr Cu_2 (BO_3)_2$: A Unique Mott Hubbard Insulator

2002-04-10

arxiv.org/abs/cond-mat/0204228v1

Physics

Condensed Matter

Strongly Correlated Electrons

18 pages,7 figures, Based on Invited Talk at 16th Nishinomiya Yukawa memorial symposium, Nov 13-14, Nishinomiya. To appear in

Scientific paper

10.1143/PTPS.145.1

We discuss the recently discovered system $Sr Cu_2 (BO_3)_2$, 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.

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