2011/04/08 by P. Bonville, I. Mirebeau, Bonville, P. +7
Materials Science · Physics and Astronomy · #Advanced Condensed Matter Physics #FOS: Physical sciences #Nuclear materials and radiation effects #Strongly Correlated Electrons (cond-mat.str-el)
paper · pdf · doi:10.48550/arxiv.1104.1584
openalex publication_date 2011/04/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
The pyrochlore compound \tbti is known to remain in a spin-liquid state down to the lowest attainable temperature (0.05 K), whereas current theories predict it should order into an antiferromagnetic structure. A number of models have been developed in order to resolve this discrepancy, but they could not obtain a spin-liquid ground state. We present here an explanation for the lack of magnetic order in \tbti based on the presence of a Jahn-Teller-like distortion from the local trigonal symmetry and on the physics of the two-singlet system coupled by exchange.