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Helical spin-waves, magnetic order, and fluctuations in the langasite compound Ba3NbFe3Si2O14

Abstract:

We have investigated the spin fluctuations in the langasite compound Ba3NbFe3Si2O14 in both the ordered state and as a function of temperature. The low temperature magnetic structure is defined by a spiral phase characterized by magnetic Bragg peaks at q=(0,0,tau ~ 1/7) onset at TN=27 K as previously reported by Marty et al. The nature of the fluctuations and temperature dependence of the order parameter is consistent with a classical second order phase transition for a two dimensional triang...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevB.83.104426

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Institution:
University of Oxford
Division:
MPLS
Department:
Physics
Sub department:
Condensed Matter Physics
Role:
Author
Journal:
Physical Review B More from this journal
Volume:
83
Issue:
10
Publication date:
2010-07-23
DOI:
EISSN:
1550-235X
ISSN:
1098-0121
Language:
English
Keywords:
Pubs id:
pubs:150090
UUID:
uuid:21ac8ce5-ec4f-4721-b5a7-f0b05475804c
Local pid:
pubs:150090
Source identifiers:
150090
Deposit date:
2012-12-19

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