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Rare-Earth Triangular Lattice Spin Liquid: A Single-Crystal Study ofYbMgGaO4
Open accessAbstract
YbMgGaO4, a structurally perfect two-dimensional triangular lattice with an odd number of electrons per unit cell and spin-orbit entangled effective spin-1/2 local moments for the Yb(3+) ions, is likely to experimentally realize the quantum spin liquid ground state. We report the first experimental characterization of single-crystal YbMgGaO4 samples. Because of the spin-orbit entanglement, the interaction between the neighboring Yb(3+) moments depends on the bond orientations and is highly anisotropic in the spin space. We carry out thermodynamic and the electron spin resonance measurements to confirm the anisotropic nature of the spin interaction as well as to quantitatively determine the couplings. Our result is a first step towards the theoretical understanding of the possible quantum spin liquid ground state in this system and sheds new light on the search for quantum spin liquids in strong spin-orbit coupled insulators.
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Citations
Cites
Anisotropic Superexchange Interaction and Weak Ferromagnetism
Moriya, T. (1960) · Physical Review · doi:10.1103/physrev.120.91 · Cited by 7,234
Spin liquids in frustrated magnets
Balents, L. (2010) · Nature · doi:10.1038/nature08917 · Cited by 4,316
New Mechanism of Anisotropic Superexchange Interaction
Moriya, T. (1960) · Physical Review Letters · doi:10.1103/physrevlett.4.228 · Cited by 1,364
Cited by
Continuous excitations of the triangular-lattice quantum spin liquid YbMgGaO4
Paddison, J. A. M., Daum, M., Dun, Z., Ehlers, G., Liu, Y., Stone, M. B., Zhou, H., & Mourigal, M. (2017) · Nature Physics · doi:10.1038/nphys3971 · Cited by 423
Variational benchmarks for quantum many-body problems
Wu, D., Rossi, R., Vicentini, F., Astrakhantsev, N., Becca, F., Cao, X., Carrasquilla, J., Ferrari, F., Georges, A., Hibat-Allah, M., et al. (2024) · Science · doi:10.1126/science.adg9774 · Cited by 79
Metadata
- Authors
- Li, Y., Chen, G., Tong, W., Pi, L., Liu, J., Yang, Z., Wang, X., & Zhang, Q.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2015-10-16
- Volume
- 115
- Issue
- 16
- Pages
- 167203-167203
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1900173860
- Cited by
- 373
- References
- 3
- FWCI
- 13.06
- Type
- journal article
- Language
- en
- Open access
- green
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- Li, Y., Chen, G., Tong, W., Pi, L., Liu, J., Yang, Z., Wang, X., & Zhang, Q. (2015). Rare-Earth Triangular Lattice Spin Liquid: A Single-Crystal Study ofYbMgGaO4. Physical Review Letters. https://doi.org/10.1103/physrevlett.115.167203
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