Experimental Realization of a Spin-Triangular-Lattice Heisenberg Antiferromagnet
Top Cited Papers
- 31 January 2012
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review Letters
- Vol. 108 (5) , 057205
- https://doi.org/10.1103/physrevlett.108.057205
Abstract
We report the results of magnetization and specific heat measurements on Ba3CoSb2O9, in which the magnetic Co2+ ion has a fictitious spin 1/2, and provide evidence that a spin-1/2 Heisenberg antiferromagnet on a regular triangular lattice is actually realized in Ba3CoSb2O9. We found that the entire magnetization curve including the one-third quantum magnetization plateau is in excellent quantitative agreement with the results of theoretical calculations. We also found that Ba3CoSb2O9 undergoes a three-step transition within a narrow temperature range.Keywords
All Related Versions
This publication has 39 references indexed in Scilit:
- Spin liquids in frustrated magnetsNature, 2010
- Exact spectra, spin susceptibilities, and order parameter of the quantum Heisenberg antiferromagnet on the triangular latticePhysical Review B, 1994
- Quantum Fluctuations and Magnetic Structures of CsCuCl3in High Magnetic FieldJournal of the Physics Society Japan, 1993
- Three-sublattice order in triangular- and Kagomé-lattice spin-half antiferromagnetsPhysical Review Letters, 1992
- Quantum theory of an antiferromagnet on a triangular lattice in a magnetic fieldJournal of Physics: Condensed Matter, 1991
- Spin-wave results for the triangular Heisenberg antiferromagnetPhysical Review B, 1989
- Simple Variational Wave Functions for Two-Dimensional Heisenberg Spin-½ AntiferromagnetsPhysical Review Letters, 1988
- Equivalence of the resonating-valence-bond and fractional quantum Hall statesPhysical Review Letters, 1987
- Magnetization Process of the Spin-1/2 Antiferromagnetic Ising-Like Heisenberg Model on the Triangular LatticeJournal of the Physics Society Japan, 1986
- Resonating valence bonds: A new kind of insulator?Materials Research Bulletin, 1973