Pressure effects in the itinerant antiferromagnetic metal TiAu

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dc.citation.articleNumber214403
dc.citation.issueNumber21
dc.citation.journalTitlePhysical Review B
dc.citation.volumeNumber95
dc.contributor.authorWolowiec, C.T.
dc.contributor.authorFang, Y.
dc.contributor.authorMcElroy, C.A.
dc.contributor.authorJeffries, J.R.
dc.contributor.authorStillwell, R.L.
dc.contributor.authorSvanidze, E.
dc.contributor.authorSantiago, J.M.
dc.contributor.authorMorosan, E.
dc.contributor.authorWeir, S.T.
dc.contributor.authorVohra, Y.K.
dc.contributor.authorMaple, M.B.
dc.date.accessioned2017-07-25T18:04:13Z
dc.date.available2017-07-25T18:04:13Z
dc.date.issued2017
dc.description.abstractWe report the pressure dependence of the Néel temperature T N up to P ≈ 27 GPa for the recently discovered itinerant antiferromagnet (IAFM) TiAu. The T N ( P ) phase boundary exhibits unconventional behavior in which the Néel temperature is enhanced from T N ≈ 33 K at ambient pressure to a maximum of T N ≈ 35 K occurring at P ≈ 5.5 GPa. Upon a further increase in pressure, T N is monotonically suppressed to ∼ 22 K at P ≈ 27 GPa. We also find a crossover in the temperature dependence of the electrical resistivity ρ in the antiferromagnetic (AFM) phase that is coincident with the peak in T N ( P ) , such that the temperature dependence of ρ = ρ 0 + A n T n changes from n ≈ 3 during the enhancement of T N to n ≈ 2 during the suppression of T N . Based on an extrapolation of the T N ( P ) data to a possible pressure-induced quantum critical point, we estimate the critical pressure to be P c ≈ 45 GPa.
dc.identifier.citationWolowiec, C.T., Fang, Y., McElroy, C.A., et al.. "Pressure effects in the itinerant antiferromagnetic metal TiAu." <i>Physical Review B,</i> 95, no. 21 (2017) American Physical Society: https://doi.org/10.1103/PhysRevB.95.214403.
dc.identifier.digitalPressure_effects
dc.identifier.doihttps://doi.org/10.1103/PhysRevB.95.214403
dc.identifier.urihttps://hdl.handle.net/1911/95222
dc.language.isoeng
dc.publisherAmerican Physical Society
dc.rightsArticle is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
dc.titlePressure effects in the itinerant antiferromagnetic metal TiAu
dc.typeJournal article
dc.type.dcmiText
dc.type.publicationpublisher version
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