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. 2012 Feb 22;24(7):076005.
doi: 10.1088/0953-8984/24/7/076005. Epub 2012 Feb 1.

Low energy spin dynamics in the spin ice Ho2Sn2O7

G Ehlers  1 , A Huq, S O Diallo, C Adriano, K C Rule, A L Cornelius, P Fouquet, P G Pagliuso, J S Gardner
Affiliations

Low energy spin dynamics in the spin ice Ho2Sn2O7

G Ehlers et al. J Phys Condens Matter. .

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.

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