Change of Antiferromagnetic Structure near a Quantum Critical Point in CeRh1-xCoxIn5

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dc.creatorYokoyama, M.
dc.creatorOyama, N.
dc.creatorAmitsuka, H.
dc.creatorOinuma, S.
dc.creatorKawasaki, I.
dc.creatorTenya, K.
dc.creatorMatsuura, M.
dc.creatorHirota, K.
dc.creatorSato, T. J.
dc.date2008-05-14
dc.date.accessioned2026-07-07T09:42:21Z
dc.date.available2026-07-07T09:42:21Z
dc.descriptionThe elastic neutron scattering experiments were carried out on the solid solutions CeRh_{1-x}Co_xIn_5 to clarify the nature of the antiferromagnetic (AF) state in the vicinity of the quantum critical point (QCP): x_c ~0.8. The incommensurate AF order with the wave vector of q_h=(1/2,1/2,~0.3) observed in pure CeRhIn_5 is weakly suppressed upon doping with Co, and a commensurate q_c=(1/2,1/2,1/2) and an incommensurate q_1=(1/2,1/2,~0.42) AF structures evolve at intermediate Co concentrations. These AF orders are enhanced at x=0.7, and furthermore the q_h AF order vanishes. These results suggest that the AF correlations with the q_c and q_1 modulations are significantly enhanced in the intermediate x range, and may be connected with the evolution of the superconductivity observed above x~0.3.
dc.description5 pages, 5 figures, accepted for publication in Phys. Rev. B
dc.identifierhttps://arxiv.org/abs/0805.1957
dc.identifierhttp://arxiv.org/abs/0805.1957
dc.identifierPhys. Rev. B 77, 224501 (2008)
dc.identifierdoi:10.1103/PhysRevB.77.224501
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/162150
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleChange of Antiferromagnetic Structure near a Quantum Critical Point in CeRh1-xCoxIn5
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