Chiral quantum excitations in the anisotropic antiferromagnet CsCoBr3
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Date
2007-03
Publication Type
Conference Paper
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yes
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Abstract
Chirality is shown to emerge as a novel degree of freedom of a quantum soliton in the anisotropic spin-frac(1, 2) compound CsCoBr3. The soliton chirality, detected via polarized neutron scattering, is in agreement with theoretical predictions and is a manifestation of Berry's phase. Our observations provide an explicit example of the emergence of spin currents and hidden chiral order that accompany the disappearance of antiferromagnetic order.
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published
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Journal / series
Volume
310 (2, Part 2)
Pages / Article No.
1194 - 1196
Publisher
North-Holland
Event
17th International Conference on Magnetism (ICM 2006)
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Subject
Low-dimensional magnetism; Antiferromagnet; Chirality; Soliton; Neutron scattering
Organisational unit
02509 - Laboratorium für Neutronenstreuung / Laboratory for Neutron Scattering