Journal
PHYSICAL REVIEW LETTERS
Volume 106, Issue 19, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.106.196407
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Funding
- MEXT of Japan [19052003, 21102510]
- Grants-in-Aid for Scientific Research [19052003, 23102714, 23540406, 21102510] Funding Source: KAKEN
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Motivated by the recent discovery of broken fourfold symmetry in the hidden order phase of URu2Si2 [R. Okazaki et al., Science 331, 439 (2011)], we examine a scenario of a spin nematic state as a possible candidate of the hidden order phase. We demonstrate that the scenario naturally explains most of experimental observations, and furthermore, reproduces successfully the temperature dependence of the spin anisotropy detected by the above-mentioned experiment in a semiquantitative way. This result provides strong evidence for the realization of the spin nematic order.
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