This title appears in the Scientific Report :
2005
Please use the identifier:
http://dx.doi.org/10.1088/0953-8984/17/44/002 in citations.
Spin dynamics in Ho2Ru2O7
Spin dynamics in Ho2Ru2O7
The spin relaxation processes within the pyrochlore Ho2Ru2O7 have been investigated by neutron scattering and bulk property techniques. A single-ion process, that is thermally activated, dominates the spin-spin relaxation spectrum above 2 K. Assuming Arrhenius behaviour, we found an activation energ...
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Personal Name(s): | Gardner, J. S. |
---|---|
Cornelius, A. L. / Chang, L.-J. / Prager, M. / Brückel, T. / Ehlers, G. | |
Contributing Institute: |
Streumethoden; IFF-ISM Neutronenstreuung; IFF-INS |
Published in: | Journal of physics / Condensed matter, 17 (2005) S. 7089 - 7095 |
Imprint: |
Bristol
IOP Publ.
2005
|
Physical Description: |
7089 - 7095 |
DOI: |
10.1088/0953-8984/17/44/002 |
Document Type: |
Journal Article |
Research Program: |
Kondensierte Materie |
Series Title: |
Journal of Physics: Condensed Matter
17 |
Subject (ZB): | |
Publikationsportal JuSER |
The spin relaxation processes within the pyrochlore Ho2Ru2O7 have been investigated by neutron scattering and bulk property techniques. A single-ion process, that is thermally activated, dominates the spin-spin relaxation spectrum above 2 K. Assuming Arrhenius behaviour, we found an activation energy Delta = (329 +/- 6) K and characteristic relaxation time tau(0) = (5.2 +/- 0.3) x 10(-12) s in the paramagnetic state, akin to those found in the spin ice, HO2Ti2O7. At low temperature (T < 95 K) the activation energy lowers and below 20 K the entropy and ac susceptibility are similar to that observed in other spin ice compounds within a 10 kOe field. |