Spin liquid state in an organic Mott insulator with a triangular lattice.

By Yasuhiro Shimizu, K. Miyagawa, K. Kanoda, M. Maesato, G. Saito. Physical Review Letters, 2003

776 citations recorded by the source corpus.

1H NMR and static susceptibility measurements have been performed in an organic Mott insulator with a nearly isotropic triangular lattice, kappa-(BEDT-TTF)2Cu2(CN)(3), which is a model system of frustrated quantum spins. The static susceptibility is described by the spin S=1/2 antiferromagnetic triangular-lattice Heisenberg model with the exchange constant J approximately 250 K. Regardless of the large magnetic interactions, the 1H NMR spectra show no indication of long-range magnetic ordering down to 32 mK, which is 4 orders of magnitude smaller than J. These results suggest that a quantum spin liquid state is realized in the close proximity of the superconducting state appearing under pressure.

Subfields: Condensed Matter Physics, Electronic, Optical and Magnetic Materials

View Paper: https://www.semanticscholar.org/paper/1d973af68d191bffd988981c55ec57fcc01bf748

How researchers see this paper

The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.

In Condensed Matter Physics

1. Yi Zhou
2. T. Ng
3. K. Kanoda
4. B. Powell
5. R. McKenzie
6. R. Kato
7. Steven H. Simon
8. Michael H. Freedman

In Electronic, Optical and Magnetic Materials

1. Yi Zhou
2. T. Ng
3. K. Kanoda
4. R. McKenzie
5. B. Powell
6. R. Kato
7. Steven H. Simon
8. Michael H. Freedman

Citations in the corpus

• Instability of a quantum spin liquid in an organic triangular-lattice antiferromagnet (2010, background): “Recently, a new quantum liquid, now known as the quantum spin liquid, has been discovered in frustrated antiferromagnetic spin-1/2 system”
• Non-Abelian Anyons and Topological Quantum Computation (2007, background): “g-range order (quantum Hall ferromagnets are an example), the absence of conventional long-range order is often used as circumstantial evidence that the ground state is ‘exotic’ (Coldea et al., 2003; Shimizu et al., 2003). This is a reasonableplace to start, but in the absence of a theoretical model”
• Quantum frustration in organic Mott insulators: from spin liquids to unconventional superconductors (2010, methodology): “From the K − χ plot a value of A = 0.07 T/µB is deduced for the outer site (Shimizu et al., 2003).”
• Quantum spin liquid states (2016, background): “19 shows the single-crystal 1H NMR spectra for the two compounds (Shimizu et al., 2003).”