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All-in all-out magnetic order and propagating spin-waves in Sm2Ir2O7

Abstract:

Using resonant magnetic x-ray scattering we address the unresolved nature of the magnetic groundstate and the low-energy effective Hamiltonian of Sm2Ir2O7, a prototypical pyrochlore iridate with a finite temperature metal-insulator transition. Through a combination of elastic and inelastic measurements, we show that the magnetic ground state is an all-in all-out (AIAO) antiferromagnet. The magnon dispersion indicates significant electronic correlations and can be well-described by a minimal H...

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Publication status:
Published
Peer review status:
Peer reviewed

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author
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Name:
Engineering and Physical Sciences Research Council
Grant:
EP/J016713/1
EP/J017124/1
Publisher:
American Physical Society
Journal:
Physical Review Letters More from this journal
Volume:
117
Issue:
3
Pages:
037201
Publication date:
2016-07-11
Acceptance date:
2016-05-25
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Pubs id:
pubs:632209
UUID:
uuid:c8d55b03-059e-42a1-9673-3a995d525ed6
Local pid:
pubs:632209
Source identifiers:
632209
Deposit date:
2016-07-06

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