Dynamic frustrated magnetism in Tb2Ti2O7 at 50 mK

Download
  1. Get@NRC: Dynamic frustrated magnetism in Tb2Ti2O7 at 50 mK (Opens in a new window)
DOIResolve DOI: http://doi.org/10.1103/PhysRevB.68.180401
AuthorSearch for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for: ; Search for:
TypeArticle
Journal titlePhysical Review. B, Condensed Matter and Materials Physics
Volume68
Issue18
Pages180401-1180401-4; # of pages: 4
AbstractThe low temperature (T<1K) properties of the cooperative paramagnet Tb2Ti2O7 have been studied by ac susceptibility, neutron diffraction and neutron spin echo techniques. Like several other frustrated magnets, Tb2Ti2O7, is believed to remain paramagnetic down to ∼0.07K. However, recent studies [Yasui et al., J. Phys. Soc. Jpn. 71, 599 (2002), for example] suggest that Tb2Ti2O7 enters an ordered, albeit glassy, state at a relatively high temperature, ∼1.5K. Our results confirm that the majority of the spins in Tb2Ti2O7 fluctuate very rapidly, even at 50 mK and that static, spatial correlations do not develop beyond nearest neighbor at similar temperatures. We suggest that the observation of a partial freezing of this magnetic system, at finite temperature, is a result of a small fraction of spins freezing around defects in the stoichiometric crystal structure.
LanguageEnglish
AffiliationNational Research Council Canada; NRC Steacie Institute for Molecular Sciences; NRC Canadian Neutron Beam Centre
Peer reviewedYes
NPARC number12327774
Export citationExport as RIS
Report a correctionReport a correction
Record identifierdcc16a91-9c2d-4250-9302-2f563f4ab729
Record created2009-09-10
Record modified2016-05-09
Bookmark and share
  • Share this page with Facebook (Opens in a new window)
  • Share this page with Twitter (Opens in a new window)
  • Share this page with Google+ (Opens in a new window)
  • Share this page with Delicious (Opens in a new window)