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Evidence for dynamic kagome ice
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Lhotel, E., Petit, S., Ciomaga Hatnean, Monica, Ollivier, J., Mutka, H., Ressouche, E., Lees, Martin R. and Balakrishnan, Geetha (2018) Evidence for dynamic kagome ice. Nature Communications, 9 (1). 3786 . doi:10.1038/s41467-018-06212-2 ISSN 2041-1723.
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Official URL: http://dx.doi.org/10.1038/s41467-018-06212-2
Abstract
The search for two-dimensional quantum spin liquids, exotic magnetic states remaining disordered down to zero temperature, has been a great challenge in frustrated magnetism over the last few decades. Recently, evidence for fractionalized excitations, called spinons, emerging from these states has been observed in kagome and triangular antiferromagnets. In contrast, quantum ferromagnetic spin liquids in two dimensions, namely quantum kagome ices, have been less investigated, yet their classical counterparts exhibit amazing properties, magnetic monopole crystals as well as magnetic fragmentation. Here, we show that applying a magnetic field to the pyrochlore oxide Nd2Zr2O7, which has been shown to develop three-dimensional quantum magnetic fragmentation in zero field, results in a dimensional reduction, creating a dynamic kagome ice state: the spin excitation spectrum determined by neutron scattering encompasses a flat mode with a six arm shape akin to the kagome ice structure factor, from which dispersive branches emerge.
| Item Type: | Journal Article | |||||||||
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| Subjects: | Q Science > QC Physics | |||||||||
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | |||||||||
| SWORD Depositor: | Library Publications Router | |||||||||
| Library of Congress Subject Headings (LCSH): | Lattice theory, Quantum liquids, Quantum theory, Nuclear spin, Magnetism, Antiferromagnetism, Ferromagnetism | |||||||||
| Journal or Publication Title: | Nature Communications | |||||||||
| Publisher: | Springer Nature America, Inc | |||||||||
| ISSN: | 2041-1723 | |||||||||
| Official Date: | 17 September 2018 | |||||||||
| Dates: |
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| Volume: | 9 | |||||||||
| Number: | 1 | |||||||||
| Article Number: | 3786 | |||||||||
| DOI: | 10.1038/s41467-018-06212-2 | |||||||||
| Status: | Peer Reviewed | |||||||||
| Publication Status: | Published | |||||||||
| Access rights to Published version: | Open Access (Creative Commons) | |||||||||
| Date of first compliant deposit: | 24 September 2018 | |||||||||
| Date of first compliant Open Access: | 24 September 2018 | |||||||||
| RIOXX Funder/Project Grant: |
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