Unusual field dependence of spin fluctuations on different timescales in Tb&lt;sub&gt;2&lt;/sub&gt;Ti&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;7&lt;/sub&gt;

Baker, P.J.; Matthews, M.J.; Giblin, S.R.; Schiffer, P.; Baines, C.; Prabhakaran, D.

doi:10.1103/PhysRevB.86.094424

Unusual field dependence of spin fluctuations on different timescales in Tb₂Ti₂O₇

Baker PJ, Matthews MJ, Giblin SR, Schiffer P, Baines C & Prabhakaran D

Citation

Baker, P. J., Matthews, M. J., Giblin, S. R., Schiffer, P., Baines, C., & Prabhakaran, D. (2012). Unusual field dependence of spin fluctuations on different timescales in Tb₂Ti₂O₇. Physical Review B, 86(9), 094424 (6 pp.). https://doi.org/10.1103/PhysRevB.86.094424

Persistent URL https://www.dora.lib4ri.ch/psi/islandora/object/psi:11954

We have investigated the spin dynamics of Tb₂Ti₂O₇ as a function of magnetic field applied along the [111] axis using ac susceptibilty and muon-spin relaxation measurements. We find a significant increase in the imaginary part of the magnetic susceptibility at low fields at our lowest investigated temperature and an increased muon-spin relaxation rate in the same field range persisting to higher temperature. Comparing the data from the two techniques we identify three field regions where the dynamic properties of Tb₂Ti₂O₇ appear to be evolving in different ways with crossovers between the regions at B₁ = 15 and B₂ ∼ 60 mT.