Spin Fluctuations and Non-Fermi-Liquid Behavior of CeNi_2Ge_2

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dc.creatorKadowaki, H.
dc.creatorFåk, B.
dc.creatorFukuhara, T.
dc.creatorMaezawa, K.
dc.creatorNakajima, K.
dc.creatorAdams, M. A.
dc.creatorRaymond, S.
dc.creatorFlouquet, J.
dc.date2003-07-14
dc.date2003-09-23
dc.date.accessioned2026-07-07T02:52:19Z
dc.date.available2026-07-07T02:52:19Z
dc.descriptionNeutron scattering shows that non-Fermi-liquid behavior of the heavy-fermion compound CeNi_2Ge_2 is brought about by the development of low-energy spin fluctuations with an energy scale of 0.6 meV. They appear around the antiferromagnetic wave vectors $({1/2} {1/2} 0)$ and $(0 0 {3/4})$ at low temperatures, and coexist with high-energy spin fluctuations with an energy scale of 4 meV and a modulation vector $(0.23, 0.23, {1/2})$. This unusual energy dependent structure of $\text{Im} χ(\bm{Q}, E)$ in $\bm{Q}$ space suggests that quasiparticle bands are important.
dc.description4 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0307314
dc.identifierhttp://arxiv.org/abs/cond-mat/0307314
dc.identifierPhys. Rev. B 68, 140402 (2003)
dc.identifierdoi:10.1103/PhysRevB.68.140402
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21801
dc.subjectStrongly Correlated Electrons
dc.titleSpin Fluctuations and Non-Fermi-Liquid Behavior of CeNi_2Ge_2
dc.typetext

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