Lithium holmium fluoride is a ternary salt with chemical formula LiHoF4. At temperatures below 1.53 K, it is ferromagnetic described by the Ising model, but the interaction coefficients arise through superexchange.[1][2] Above that temperature, it paramagnetizes.[2] Even at 0 K, LiHoF4 exhibits a quantum phase transition, aligning with an external magnetic field.[3]
References
- ^ Cooke, A. H.; Jones, D. A.; Silva, J. F. A.; Wells, M. R. (8 August 1975). "Ferromagnetism in lithium holmium fluoride—LiHoF4: I. Magnetic measurements". J. Phys. C: Solid State Phys. 8. Great Britain: 4083–4088. doi:10.1088/0022-3719/8/23/021.
- ^ a b Nikkel, James Algot (August 2003). Phonon studies of LiYxHoxF4 compounds at low temperatures (PhD thesis). Kent State – via ProQuest.
- ^ Sachdev, Subir (April 1999). "Quantum phase transitions". Phys. World. 12 (4): 33. doi:10.1088/2058-7058/12/4/23.
Further reading
- Twengström, M.; Bovo, L.; Petrenko, O. A.; Bramwell, S. T.; Henelius, P. (19 October 2020). "LiHoF 4 : Cuboidal demagnetizing factor in an Ising ferromagnet". Physical Review B. 102 (14): 144426. arXiv:2006.10090. doi:10.1103/PhysRevB.102.144426.
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