Hastatic order
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 | This article may be too technical for most readers to understand. (August 2015) |
Hastatic order is a fundamental way of breaking double "time-reversal" symmetry.[1] It is present in the heavy-fermion compound URu2Si2.[2] This order was dubbed hastatic from hasta, the Latin word for "spear".[3] Its cycle is twice as complex as magnetism.
Discovery
[edit]Hastatic order was first reported in January 2013 when the heavy-fermion uranium compound URu2Si2 was cooled to nearly −415 °F (−248.3 °C). It was said to produce extra heat and the heat was the main mystery. After the extra heat was released, particles were arranged at this way, making the hastatic order present on that reaction.
References
[edit]- ^ Francis, Matthew (30 January 2013). "Double time-reversal asymmetry could explain weird material behavior". Ars Technica. Retrieved 20 August 2015.
- ^ Arikia (18 February 2013). "Scientists find weird new property of matter that breaks all the rules". The Verge. Vox Media.
- ^ Chandra, Premala; Coleman, Piers; Flint, Rebecca (January 2013). "Hastatic order in the heavy-fermion compound URu2Si2" (PDF). Nature. 493 (621): 621–626. arXiv:1207.4828. Bibcode:2013Natur.493..621C. doi:10.1038/nature11820. PMID 23364741. S2CID 205232317. Retrieved 20 August 2015.
- Flint, Rebecca; Coleman, Piers (August 2014). "Spins, electrons and broken symmetries: Realizations of two-channel Kondo physics". Comptes Rendus Physique. 15 (7): 557–562. arXiv:1408.2411. Bibcode:2014CRPhy..15..557F. doi:10.1016/j.crhy.2014.06.004. S2CID 118718896.
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