The Effect of Disorder on a Quantum Phase Transition

Simple item page
dc.creatorDiTusa, J. F.
dc.creatorGuo, S.
dc.creatorYoung, D. P.
dc.creatorMacaluso, R. T.
dc.creatorBrowne, D. A.
dc.creatorHenderson, N. L.
dc.creatorChan, J. Y.
dc.date2003-06-21
dc.date.accessioned2026-07-07T02:51:58Z
dc.date.available2026-07-07T02:51:58Z
dc.descriptionThe conductivity and magnetization of Fe1-xCoxS2 were measured to investigate quantum critical behavior in disordered itinerant magnets. Small x (<0.001) is required to convert insulating iron pyrite into a metal, followed by a paramagnetic-to-ferromagnetic metal transition at x = 0.032+/-0.004. Singular contributions are discovered that are distinct from those at either metal-insulator or magnetic transitions. Our data reveal that disorder and low carrier density associated with proximity to a metal-insulator transition fundamentally modifies the critical behavior of the magnetic transition.
dc.description14 pages 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0306541
dc.identifierhttp://arxiv.org/abs/cond-mat/0306541
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/21670
dc.subjectStrongly Correlated Electrons
dc.subjectMaterials Science
dc.titleThe Effect of Disorder on a Quantum Phase Transition
dc.typetext

Files

Collections

arXiv