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Emergence of superconductivity in BaNi (Ge P ) at a structural instability

Author(s): Hirai, Daigorou; von Rohr, Fabian; Cava, Robert J

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dc.contributor.authorHirai, Daigorou-
dc.contributor.authorvon Rohr, Fabian-
dc.contributor.authorCava, Robert J-
dc.date.accessioned2022-01-25T14:57:11Z-
dc.date.available2022-01-25T14:57:11Z-
dc.date.issued2012-09en_US
dc.identifier.citationHirai, Daigorou, von Rohr, F, Cava, RJ. (2012). Emergence of superconductivity in BaNi (Ge P ) at a structural instability. Physical Review B, 86 (10), 10.1103/PhysRevB.86.100505en_US
dc.identifier.issn1098-0121-
dc.identifier.urihttp://arks.princeton.edu/ark:/88435/pr19z90b5k-
dc.description.abstractThe physical properties and structural evolution of the 122-type solid solution BaNi2(Ge1−xPx )2 are reported. The in-plane X-X (X = Ge1−xPx ) dimer formation present in the end member BaNi2Ge2, which results in a structural transition to orthorhombic symmetry, is completely suppressed to zero temperature on P substitution near x = 0.7, and a dome-shaped superconducting phase with a maximum Tc = 2.9 K emerges. Clear indications of phonon softening and enhanced electron-phonon coupling are observed at the composition of the structural instability. Our findings show that dimer breaking offers possibilities as a tuning parameter of superconductivity.en_US
dc.format.extent100505-1 - 100505-5en_US
dc.language.isoen_USen_US
dc.relation.ispartofPhysical Review Ben_US
dc.rightsFinal published version. Article is made available in OAR by the publisher's permission or policy.en_US
dc.titleEmergence of superconductivity in BaNi (Ge P ) at a structural instabilityen_US
dc.typeJournal Articleen_US
dc.identifier.doidoi:10.1103/PhysRevB.86.100505-
dc.date.eissued2012-09-19en_US
dc.identifier.eissn1550-235X-
pu.type.symplectichttp://www.symplectic.co.uk/publications/atom-terms/1.0/journal-articleen_US

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