Polarized neutron scattering studies of the Kagom lattice antiferromagnet KFe(OH)(SO)

Matan, K.*; Helton, J. S.*; Grohol, D.*; Nocera, D. G.*; Wakimoto, Shuichi ; Kakurai, Kazuhisa; Lee, Y. S.*

Polarized neutron scattering studies of spin-wave excitations and spin fluctuations in the kagom lattice antiferromagnet KFe(OH)(SO) (jarosite) have been performed. Inelastic polarized neutron scattering measurements at 10 K on a single crystal sample reveal two spin gaps, associated with in-plane and out-of-plane excitations. The polarization analysis of quasi-elastic scattering at 67 K shows in-plane spin fluctuations with symmetry. Our results suggest that jarosite is an ideal candidate for studying the 2D universality class in magnetic systems.

Language	:	English
Journal	:	Physica B; Condensed Matter
Volume	:	404
Number	:	17
Pages	:	p.2529 - 2531
Publication Year/Month	:	2009/09
Meeting title	:	7th International Workshop on Polarized Neutrons in Condensed Matter Investigations and 2nd International Symposium of Quantum Beam Science Directorate (PNCMI 2008/QuBS 2008)
Held date	:	2008/09
Location (city)	:	Tokai
Location (country)	:	Japan
Patent information	:
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Paper URL	:	https://doi.org/10.1016/j.physb.2009.06.053
DOI for research data	:
Keywords	:	no keyword
Research Facility	:	JRR-3M(研究炉3)
Press Release	:
Article of JAEA R&D Review	:
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Registration No. : BB20081929
JAEA Abstracts No. : 44000431
Paper Submission No. : 17108

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