Itinerant antiferromagnetism in BaCr$_2$As$_2$

Simple item page
dc.creatorSingh, D. J.
dc.creatorSefat, A. S.
dc.creatorMcGuire, M. A.
dc.creatorSales, B. C.
dc.creatorMandrus, D.
dc.creatorVanBebber, L. H.
dc.creatorKeppens, V.
dc.date2009-02-05
dc.date2009-02-16
dc.date.accessioned2026-07-07T12:58:24Z
dc.date.available2026-07-07T12:58:24Z
dc.descriptionWe report single crystal synthesis, specific heat and resistivity measurements and electronic structure calculations for BaCr$_2$As$_2$. This material is a metal with itinerant antiferromagnetism, similar to the parent phases of Fe-based high temperature superconductors, but differs in magnetic order. Comparison of bare band structure density of states and the low temperature specific heat implies a mass renormalization of $\sim$ 2. BaCr$_2$As$_2$ shows stronger transition metal - pnictogen covalency than the Fe compounds, and in this respect is more similar to BaMn$_2$As$_2$. This provides an explanation for the observation that Ni and Co doping is effective in the Fe-based superconductors, but Cr or Mn doping is not.
dc.descriptionAdditional discussion. Minor correction to Fermi velocities
dc.identifierhttps://arxiv.org/abs/0902.0945
dc.identifierhttp://arxiv.org/abs/0902.0945
dc.identifierPhys. Rev. B 79, 094429 (2009)
dc.identifierdoi:10.1103/PhysRevB.79.094429
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/225232
dc.subjectSuperconductivity
dc.titleItinerant antiferromagnetism in BaCr$_2$As$_2$
dc.typetext

Files

Collections

arXiv