The DOI matches its Crossref record; 22 of the 22 references it cites were found in a registry or an index.
Absence of a Spin Liquid Phase in the Hubbard Model on the Honeycomb Lattice
Open accessAbstract
A spin liquid is a novel quantum state of matter with no conventional order parameter where a finite charge gap exists even though the band theory would predict metallic behavior. Finding a stable spin liquid in two or higher spatial dimensions is one of the most challenging and debated issues in condensed matter physics. Very recently, it has been reported that a model of graphene, i.e., the Hubbard model on the honeycomb lattice, can show a spin liquid ground state in a wide region of the phase diagram, between a semi-metal (SM) and an antiferromagnetic insulator (AFMI). Here, by performing numerically exact quantum Monte Carlo simulations, we extend the previous study to much larger clusters (containing up to 2592 sites), and find, if any, a very weak evidence of this spin liquid region. Instead, our calculations strongly indicate a direct and continuous quantum phase transition between SM and AFMI.
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Spin Liquid State in an Organic Mott Insulator with a Triangular Lattice
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Cited by
Vafek, O., & Vishwanath, A. (2014) · Annual Review of Condensed Matter Physics · doi:10.1146/annurev-conmatphys-031113-133841 · Cited by 614
Artificial honeycomb lattices for electrons, atoms and photons
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Metadata
- Authors
- Sorella, S., Otsuka, Y., & Yunoki, S.
- Venue
- Scientific Reports
- Published
- 2012-12-18
- Volume
- 2
- Issue
- 1
- Pages
- 992-992
- ISSN
- 2045-2322 (ISSN-L)
- OpenAlex
- W2001445685
- Cited by
- 329
- References
- 22
- FWCI
- 23.46
- Type
- journal article
- Language
- en
- Open access
- gold
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