Low Lying Spin Excitation in the Spin Ice, Ho2Ti2O7

被引：2
作者：
Ehlers, G. [1 ]
Mamontov, E. [1 ]
机构：
[1] Oak Ridge Natl Lab, SNS, Oak Ridge, TN 37831 USA
来源：
INTERNATIONAL CONFERENCE ON NEUTRON SCATTERING 2009 | 2010年 / 251卷
关键词：
CROSSOVER;
D O I：
10.1088/1742-6596/251/1/012003
中图分类号：
Q6 [生物物理学];
学科分类号：
071011 ;
摘要：
The high flux and low background of the new backscattering spectrometer at the SNS combine to produce an excellent signal to noise ratio, allowing us to investigate a low lying weak excitation never seen before in the spin ice, Ho(2)Ti(2)O(7). This non-dispersive excitation has been observed at E = 26.3 mu eV below 100 K but is resolution limited only below similar to 65 K. It is indifferent to magnetic fields below mu(0)H - 4.5 T, at 1.6 K. These characteristics help us to identify the excitation as due to the nuclear spin system.
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页数：4
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