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Candidate Quantum Spin Liquid in the Ce3+ Pyrochlore Stannate Ce2Sn2O7
- Source :
- Physical Review Letters, Physical Review Letters, American Physical Society, 2015, 115 (9), pp.097202. ⟨10.1103/PhysRevLett.115.097202⟩
- Publication Year :
- 2015
- Publisher :
- HAL CCSD, 2015.
-
Abstract
- We report the low-temperature magnetic properties of Ce2Sn2O7, a rare-earth pyrochlore. Our susceptibility and magnetization measurements show that due to the thermal isolation of a Kramers doublet ground state, Ce2Sn2O7 has Ising-like magnetic moments of ∼1.18 μ_{B}. The magnetic moments are confined to the local trigonal axes, as in a spin ice, but the exchange interactions are antiferromagnetic. Below 1 K, the system enters a regime with antiferromagnetic correlations. In contrast to predictions for classical ⟨111⟩-Ising spins on the pyrochlore lattice, there is no sign of long-range ordering down to 0.02 K. Our results suggest that Ce2Sn2O7 features an antiferromagnetic liquid ground state with strong quantum fluctuations.
Details
- Language :
- English
- ISSN :
- 00319007 and 10797114
- Database :
- OpenAIRE
- Journal :
- Physical Review Letters, Physical Review Letters, American Physical Society, 2015, 115 (9), pp.097202. ⟨10.1103/PhysRevLett.115.097202⟩
- Accession number :
- edsair.pmid.dedup....afa3db4602d79de7c9b3cee5476bb632