Role of non-magnetic disorder in a doped U(1) spin liquid
Kim, Ki-Seok
Original · EN
Recently we investigated a role of non-magnetic disorder on the stability of a U(1) spin liquid (U1SL) [cond-mat/0407151; Phys. Rev. B (R) accepted]. In the present paper we examine an effect of the non-magnetic disorder on a doped U1SL. In a recent study [cond-mat/0408236] we have shown that the doped U1SL shows deconfined massive spinon excitations in the superconducting phase as a result of holon condensation. We find that the massive spinon is trapped by the non-magnetic disorder. Owing to the localized spin the non-magnetic disorder acts as magnetic one.
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