Effects of impurities in spin Bose-metal phase on a two-leg triangular strip
نویسندگان
چکیده
منابع مشابه
Effects of impurities in spin Bose-metal phase on a two-leg triangular strip
We study the effects of nonmagnetic impurities in a spin Bose-metal SBM phase discovered in a two-leg triangular strip spin-1/2 model with ring exchanges D. N. Sheng et al., arXiv:0902.4210 . This phase is a quasi-one-dimensional quasi-1D descendant of a two-dimensional 2D spin liquid with spinon Fermi sea and the present study aims at interpolating between the 1D and 2D cases. Different types ...
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Recent experiments on triangular lattice organic Mott insulators have found evidence for a two-dimensional 2D spin liquid in close proximity to the metal-insulator transition. A Gutzwiller wave function study of the triangular lattice Heisenberg model with a four-spin ring exchange term appropriate in this regime has found that the projected spinon Fermi sea state has a low variational energy. ...
متن کاملEffects of Zeeman field on a spin Bose-metal phase
We consider Zeeman field effects on a spin Bose-metal SBM phase on a two-leg triangular ladder. This phase was found in a spin-1/2 model with ring exchanges D. N. Sheng, O. I. Motrunich, and M. P. A. Fisher, Phys. Rev. B 79, 205112 2009 and was also proposed to appear in an interacting electronic model with longer-ranged repulsion H.-H. Lai and O. I. Motrunich, Phys. Rev. B 81, 045105 2010 . Us...
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Two-band electronic metal and neighboring spin Bose-metal on a zigzag strip with longer-ranged repulsion
We consider an electronic model for realizing the spin Bose-metal SBM phase on a two-leg triangular strip—a spin liquid phase found by Sheng et al. Phys. Rev. B 79, 205112 2009 in a spin-1/2 model with ring exchanges. The SBM can be viewed as a “C1S2” Mott insulator of electrons where the overall charge transporting mode is gapped out. We start from a two-band “C2S2” metal and consider extended...
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ژورنال
عنوان ژورنال: Physical Review B
سال: 2009
ISSN: 1098-0121,1550-235X
DOI: 10.1103/physrevb.79.235120