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Geometrical Frustration in the Ferromagnetic PyrochloreHo2Ti2O7
Open accessAbstract
We report a detailed study of the pyrochlore ${\mathrm{Ho}}_{2}{\mathrm{Ti}}_{2}{\mathrm{O}}_{7}$, in which the magnetic ions $({\mathrm{Ho}}^{3+})$ are ferromagnetically coupled with $J\ensuremath{\sim}1\mathrm{K}$. We show that the presence of local Ising anisotropy leads to a geometrically frustrated ground state, preventing long-range magnetic order down to at least 0.05 K. However, unlike in the case of a frustrated antiferromagnet, this disorder is principally static. In a magnetic field, the ground-state degeneracy is broken and ordered magnetic phases are formed which display an unusual history dependence due to the slow dynamics of the system. These results represent the first experimental evidence for geometrical frustration in a ferromagnetic system.
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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
Spin Chirality, Berry Phase, and Anomalous Hall Effect in a Frustrated Ferromagnet
Taguchi, Y., Oohara, Y., Yoshizawa, H., Nagaosa, N., & Tokura, Y. (2001) · Science · doi:10.1126/science.1058161 · Cited by 916
Metal-Nonmetal Changeover in Pyrochlore Iridates
Yanagishima, D., & Maeno, Y. (2001) · Journal of the Physical Society of Japan · doi:10.1143/jpsj.70.2880 · Cited by 212
Metal–Insulator Transition in Pyrochlore Iridates Ln2Ir2O7 (Ln = Nd, Sm, and Eu)
Matsuhira, K., Wakeshima, M., Nakanishi, R., Yamada, T., Nakamura, A., Kawano, W., Takagi, S., & Hinatsu, Y. (2007) · Journal of the Physical Society of Japan · doi:10.1143/jpsj.76.043706 · Cited by 207
Metadata
- Authors
- Harris, M. J., Bramwell, S. T., McMorrow, D. F., Zeiske, T., & Godfrey, K. W.
- Venue
- Physical Review Letters
- Publisher
- American Physical Society (APS)
- Published
- 1997-09-29
- Volume
- 79
- Issue
- 13
- Pages
- 2554-2557
- ISSN
- 0031-9007 (ISSN-L)
- 1079-7114
- OpenAlex
- W1968038649
- Cited by
- 1,137
- References
- 0
- FWCI
- 7.58
- Type
- journal article
- Language
- en
- Open access
- bronze
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- Harris, M. J., Bramwell, S. T., McMorrow, D. F., Zeiske, T., & Godfrey, K. W. (1997). Geometrical Frustration in the Ferromagnetic PyrochloreHo2Ti2O7. Physical Review Letters. https://doi.org/10.1103/physrevlett.79.2554
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