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Low-temperature muon spin rotation studies of the monopole charges and currents in Y doped Ho2Ti2O7
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Chang, L. J. (Lieh-Jeng), Lees, Martin R., Balakrishnan, Geetha, Kao, Y.-J. (Ying-Jer) and Hillier, A. D. (Adrian D.) (2013) Low-temperature muon spin rotation studies of the monopole charges and currents in Y doped Ho2Ti2O7. Scientific Reports, Volume 3 . Article number 1881. doi:10.1038/srep01881
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Official URL: http://dx.doi.org/10.1038/srep01881
Abstract
In the ground state of Ho2Ti2O7 spin ice, the disorder of the magnetic moments follows the same rules as the proton disorder in water ice. Excitations take the form of magnetic monopoles that interact via a magnetic Coulomb interaction. Muon spin rotation has been used to probe the low-temperature magnetic behaviour in single crystal Ho2−xYxTi2O7 (x = 0, 0.1, 1, 1.6 and 2). At very low temperatures, a linear field dependence for the relaxation rate of the muon precession λ(B), that in some previous experiments on Dy2Ti2O7 spin ice has been associated with monopole currents, is observed in samples with x = 0, and 0.1. A signal from the magnetic fields penetrating into the silver sample plate due to the magnetization of the crystals is observed for all the samples containing Ho allowing us to study the unusual magnetic dynamics of Y doped spin ice.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QC Physics | ||||
| Divisions: | Faculty of Science > Physics | ||||
| Library of Congress Subject Headings (LCSH): | Magnetic materials, Magnetic monopoles, Ferromagnetism, Electronics -- Materials, Electromagnetism | ||||
| Journal or Publication Title: | Scientific Reports | ||||
| Publisher: | Nature Publishing Group | ||||
| ISSN: | 2045-2322 | ||||
| Official Date: | 23 May 2013 | ||||
| Dates: |
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| Volume: | Volume 3 | ||||
| Page Range: | Article number 1881 | ||||
| DOI: | 10.1038/srep01881 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Open Access | ||||
| Funder: | Engineering and Physical Sciences Research Council (EPSRC), Guo jia ke xue wei yuan hui [National Science Council (Taiwan)], Advantage West Midlands (AWM), European Regional Development Fund (ERDF) | ||||
| Grant number: | EP/I007210/1 (EPSRC); NSC 101-2112-M-006-010-MY3 [National Science Council (Taiwan)] |
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