Renormalized behavior and proximity to a magnetic quantum critical point in BaCo$_2$As$_2$

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dc.creatorSefat, A. S.
dc.creatorSingh, D. J.
dc.creatorJin, R.
dc.creatorMcGuire, M. A.
dc.creatorSales, B. C.
dc.creatorMandrus, D.
dc.date2008-11-15
dc.date.accessioned2026-07-07T12:31:53Z
dc.date.available2026-07-07T12:31:53Z
dc.descriptionWe report synthesis and single crystal measurements of magnetic, transport and thermal properties of single crystalline BaCo$_2$As$_2$ as well as first principles calculations of the electronic structure and magnetic behavior. These results show that BaCo$_2$As$_2$ is a highly renormalized paramagnet in proximity to a quantum critical point, presumably of ferromagnetic character and that BaFeNiAs$_2$ behaves similarly. These results are discussed in relation to the properties of Ba(Fe,Co)$_2$As$_2$ and Ba(Fe,Ni)$_2$As$_2$, which are superconducting for low Co and Ni concentrations.
dc.identifierhttps://arxiv.org/abs/0811.2523
dc.identifierhttp://arxiv.org/abs/0811.2523
dc.identifierPhys. Rev. B 79, 024512 (2009)
dc.identifierdoi:10.1103/PhysRevB.79.024512
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/216600
dc.subjectSuperconductivity
dc.titleRenormalized behavior and proximity to a magnetic quantum critical point in BaCo$_2$As$_2$
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