Volume 71, Number 3, August 2005
|Page(s)||425 - 430|
|Section||Condensed matter: electronic structure, electrical, magnetic, and optical properties|
|Published online||29 June 2005|
Soliton phase near antiferromagnetic quantum critical point in Q1D conductors
National High Magnetic Field Laboratory, Florida State University Tallahassee, FL 32306-4005, USA
2 L. D. Landau Institute for Theoretical Physics - Chernogolovka, Russia
Accepted: 27 May 2005
In frameworks of a nesting model for Q1D organic conductors at the antiferromagnetic (SDW) quantum critical point, the first-order transition separates the metallic state from the soliton phase having periodic domain structure. The low-temperature phase diagram also displays a 2nd-order transition line between the soliton and the uniformly gapped SDW phases. The results agree with the phase diagram of (TMTSF)2PF6 near critical pressure (Vuletic T. et al. , Eur. Phys. J. B 25 (2002) 319). The detection of the 2nd-order transition line is discussed. We comment on superconductivity at low temperature.
PACS: 71.30.+h – Metal-insulator transitions and other electronic transitions / 74.70.Kn – Organic superconductors / 75.30.Fv – Spin-density waves
© EDP Sciences, 2005
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