Soliton phase near antiferromagnetic quantum critical point in Q1D conductors

Details Soliton phase near antiferromagnetic quantum critical point in Q1D conductors Soliton phase near antiferromagnetic quantum critical point in Q1D conductors

2005-02-18

arxiv.org/abs/cond-mat/0502472v1

Physics

Condensed Matter

Strongly Correlated Electrons

4 pages, 1 figure

Scientific paper

10.1209/epl/i2005-10089-y

In the frameworks of a nesting model for Q1D organic conductor at the antiferromagnetic (SDW) quantum critical point the first-order transition separates metallic state from the soliton phase having the periodic domain structure. The low temperature phase diagram also displays the 2nd-order transition line between the soliton and the uniformly gapped SDW phases. The results agree with the phase diagram of (TMTSF)$_2$PF$_6$ near critical pressure [T. Vuletic et al., Eur. Phys. J. B 25, 319 (2002)]. Detection of the 2nd-order transition line is discussed. We comment on superconductivity at lowest temperature.

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