Neutron Sciences Directorate, Oak Ridge National Laboratory, Oak Ridge, TN 37831-6475, USA.
J Phys Condens Matter. 2012 Feb 22;24(7):076005. doi: 10.1088/0953-8984/24/7/076005. Epub 2012 Feb 1.
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.
对 Ho(2)Sn(2)O(7)的磁性进行了研究，并与其他自旋冰化合物进行了比较。尽管晶格相对于研究更为充分的 Ho(2)Ti(2)O(7)自旋冰膨胀了 3%，但在高温特性方面没有观察到明显的变化，T 更多或大约等于 20 K。随着温度的降低和相关性的发展，Ho(2)Sn(2)O(7)在比 Ho(2)Ti(2)O(7)略高的温度下进入其量子相，并且具有更强的反铁磁性质。在 80 K 以下，测量到与钬原子核自旋系统相关的弱非弹性模式。在钬原子核处的超精细场被发现约为 700 T。
