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Spin-Liquid State in theS=1/2Hyperkagome AntiferromagnetNa4Ir3O8
Open accessAbstract
A spinel related oxide, Na(4)Ir(3)O(8), was found to have a three dimensional network of corner shared Ir(4+) (t(2g)(5)) triangles. This gives rise to an antiferromagnetically coupled S = 1/2 spin system formed on a geometrically frustrated hyperkagome lattice. Magnetization M and magnetic specific heat C(m) data showed the absence of long range magnetic ordering at least down to 2 K. The large C(m) at low temperatures is independent of applied magnetic field up to 12 T, in striking parallel to the behavior seen in triangular and kagome antiferromagnets reported to have a spin-liquid ground state. These results strongly suggest that the ground state of Na(4)Ir(3)O(8) is a three dimensional manifestation of a spin liquid.
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Cited by
Wan, X., Turner, A. M., Vishwanath, A., & Savrasov, S. Y. (2011) · Physical Review B · doi:10.1103/physrevb.83.205101 · Cited by 4,718
Spin liquids in frustrated magnets
Balents, L. (2010) · Nature · doi:10.1038/nature08917 · Cited by 4,316
Long-range magnetic ordering in Na2IrO3
Liu, X., Berlijn, T., Yin, W.-G., Ku, W., Tsvelik, A., Kim, Y.-J., Gretarsson, H., Singh, Y., Gegenwart, P., & Hill, J. P. (2011) · Physical Review B · doi:10.1103/physrevb.83.220403 · Cited by 353
Filling constraints for spin-orbit coupled insulators in symmorphic and nonsymmorphic crystals
Watanabe, H., Po, H. C., Vishwanath, A., & Zaletel, M. (2015) · Proceedings of the National Academy of Sciences · doi:10.1073/pnas.1514665112 · Cited by 195
Metadata
- Authors
- Okamoto, Y., Nohara, M., Aruga-Katori, H., & Takagi, H.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 2007-09-27
- Volume
- 99
- Issue
- 13
- Pages
- 137207-137207
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W2015588914
- Cited by
- 534
- References
- 0
- FWCI
- 17.20
- Type
- journal article
- Language
- en
- Open access
- green
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- Okamoto, Y., Nohara, M., Aruga-Katori, H., & Takagi, H. (2007). Spin-Liquid State in theS=1/2Hyperkagome AntiferromagnetNa4Ir3O8. Physical Review Letters. https://doi.org/10.1103/physrevlett.99.137207
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