Magnetic Interaction in the Geometrically Frustrated Triangular Lattice Antiferromagnet $\rm CuFeO_2$

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dc.creatorYe, F.
dc.creatorFernandez-Baca, J. A.
dc.creatorFishman, R. S.
dc.creatorRen, Y.
dc.creatorKang, H. J.
dc.creatorQiu, Y.
dc.creatorKimura, T.
dc.date2007-08-09
dc.date2007-10-08
dc.date.accessioned2026-07-07T08:34:17Z
dc.date.available2026-07-07T08:34:17Z
dc.descriptionThe spin wave excitations of the geometrically frustrated triangular lattice antiferromagnet (TLA) $\rm CuFeO_2$ have been measured using high resolution inelastic neutron scattering. Antiferromagnetic interactions up to third nearest neighbors in the ab plane (J_1, J_2, J_3, with $J_2/J_1 \approx 0.44$ and $J_3/J_1 \approx 0.57$), as well as out-of-plane coupling (J_z, with $J_z/J_1 \approx 0.29$) are required to describe the spin wave dispersion relations, indicating a three dimensional character of the magnetic interactions. Two energy dips in the spin wave dispersion occur at the incommensurate wavevectors associated with multiferroic phase, and can be interpreted as dynamic precursors to the magnetoelectric behavior in this system.
dc.description4 pages, 4 figures, published in Phys. Rev. Lett
dc.identifierhttps://arxiv.org/abs/0708.1198
dc.identifierhttp://arxiv.org/abs/0708.1198
dc.identifierPhys. Rev. Lett. 99, 157201 (2007)
dc.identifierdoi:10.1103/PhysRevLett.99.157201
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/139383
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleMagnetic Interaction in the Geometrically Frustrated Triangular Lattice Antiferromagnet $\rm CuFeO_2$
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