title: Low energy spin dynamics in the spin ice Ho2Sn2O7.
abstract: The magnetic properties of Ho(2)Sn(2)O(7) have been investigated and compared to other spin ice compounds. Although the lattice has expanded by 3% relative to the better studied Ho(2)Ti(2)O(7) spin ice, no significant changes were observed in the high temperature properties, T is more or approximately equal to 20 K. As the temperature is lowered and correlations develop, Ho(2)Sn(2)O(7) enters its quantum phase at a slightly higher temperature than Ho(2)Ti(2)O(7) and is more antiferromagnetic in character. Below 80 K a weak inelastic mode associated with the holmium nuclear spin system has been measured. The hyperfine field at the holmium nucleus was found to be ≈700 T.
authors.affiliation: Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6475, USA. ehlersg@ornl.gov
authors.forename: G
authors.initials: G
authors.lastname: Ehlers
authors.forename: A
authors.initials: A
authors.lastname: Huq
authors.forename: S O
authors.initials: SO
authors.lastname: Diallo
authors.forename: C
authors.initials: C
authors.lastname: Adriano
authors.forename: K C
authors.initials: KC
authors.lastname: Rule
authors.forename: A L
authors.initials: AL
authors.lastname: Cornelius
authors.forename: P
authors.initials: P
authors.lastname: Fouquet
authors.forename: P G
authors.initials: PG
authors.lastname: Pagliuso
authors.forename: J S
authors.initials: JS
authors.lastname: Gardner