Field-induced soft-mode quantum phase transition in La$_{1.855}$Sr$_{0.145}$CuO$_{4}$

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dc.creatorChang, J.
dc.creatorChristensen, N. B.
dc.creatorNiedermayer, Ch.
dc.creatorLefmann, K.
dc.creatorRoennow, H. M.
dc.creatorMcMorrow, D. F.
dc.creatorSchneidewind, A.
dc.creatorLink, P.
dc.creatorHiess, A.
dc.creatorBoehm, M.
dc.creatorMottl, R.
dc.creatorPailhes, S.
dc.creatorMomono, N.
dc.creatorOda, M.
dc.creatorIdo, M.
dc.creatorMesot, J.
dc.date2009-02-06
dc.date.accessioned2026-07-07T13:10:26Z
dc.date.available2026-07-07T13:10:26Z
dc.descriptionInelastic neutron-scattering experiments on the high-temperature superconductor La$_{1.855}$Sr$_{0.145}$CuO$_{4}$ reveal a magnetic excitation gap $Δ$ that decreases continuously upon application of a magnetic field perpendicular to the CuO$_2$ planes. The gap vanishes at the critical field required to induce long-range incommensurate antiferromagnetic order, providing compelling evidence for a field-induced soft-mode driven quantum phase transition.
dc.identifierhttps://arxiv.org/abs/0902.1191
dc.identifierhttp://arxiv.org/abs/0902.1191
dc.identifierPhysical Review Letters 102, 177006 (2009)
dc.identifierdoi:10.1103/PhysRevLett.102.177006
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/229011
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleField-induced soft-mode quantum phase transition in La$_{1.855}$Sr$_{0.145}$CuO$_{4}$
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