Dispersion of the superconducting spin resonance in underdoped and antiferromagnetic BaFe2As2

dc.contributor.author Pratt, D. K.
dc.contributor.author Kreyssig, Andreas
dc.contributor.author Nandi, S.
dc.contributor.author Ni, N.
dc.contributor.author Thaler, A.
dc.contributor.author Lumsden, M. D.
dc.contributor.author Tian, W.
dc.contributor.author Zarestky, J. S.
dc.contributor.author Bud'ko, Sergey L.
dc.contributor.author Canfield, Paul
dc.contributor.author Goldman, A. I.
dc.contributor.author McQueeney, R. J.
dc.contributor.department Physics and Astronomy
dc.contributor.department Ames Laboratory
dc.date.accessioned 2022-06-22T21:42:55Z
dc.date.available 2022-06-22T21:42:55Z
dc.date.issued 2010-04-01
dc.description.abstract Inelastic neutron-scattering measurements have been performed on underdoped Ba(Fe1-xCox)(2)As-2 (x=4.7%) where superconductivity and long-range antiferromagnetic (AFM) order coexist. The magnetic spectrum found in the normal state is strongly damped and develops into a magnetic resonance feature below T-c that has appreciable dispersion along c axis with a bandwidth of 3-4 meV. This is in contrast to the optimally doped x=8.0% composition, with no long-range AFM order, where the resonance exhibits a much weaker dispersion. [see M. D. Lumsden et al., Phys. Rev. Lett. 102, 107005 (2009).] The results suggest that the resonance dispersion arises from interlayer spin correlations present in the AFM ordered state.
dc.description.comments This article is published as Pratt, D. K., A. Kreyssig, S. Nandi, N. Ni, A. Thaler, M. D. Lumsden, W. Tian et al. "Dispersion of the superconducting spin resonance in underdoped and antiferromagnetic BaFe 2 As 2." Physical Review B 81, no. 14 (2010): 140510. DOI: 10.1103/PhysRevB.81.140510. Copyright 2010 American Physical Society. Posted with permission.
dc.identifier.uri https://dr.lib.iastate.edu/handle/20.500.12876/avVOlMDr
dc.language.iso en
dc.publisher American Physical Society
dc.source.uri https://doi.org/10.1103/PhysRevB.81.140510 *
dc.title Dispersion of the superconducting spin resonance in underdoped and antiferromagnetic BaFe2As2
dc.type Article
dspace.entity.type Publication
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relation.isOrgUnitOfPublication 25913818-6714-4be5-89a6-f70c8facdf7e
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