Superconductivity and the Effects of Pressure and Structure in Single Crystalline SrNi$_2$P$_2$

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dc.creatorRonning, F.
dc.creatorBauer, E. D.
dc.creatorPark, T.
dc.creatorBaek, S. -H
dc.creatorSakai, H.
dc.creatorThompson, J. D.
dc.date2009-02-04
dc.date2009-04-10
dc.date.accessioned2026-07-07T13:02:19Z
dc.date.available2026-07-07T13:02:19Z
dc.descriptionHeat capacity, magnetic susceptibility, NMR, and resistivity of SrNi2P2 single crystals are presented, illustrating a purely structural transition at 325 K with no magnetism. Bulk superconductivity is found at 1.4 K. The magnitude of the transition temperature T_c, fits to the heat capacity data, the small upper critical field $H_{c2}$ = 390 Oe, and Ginzburg-Landau parameter $κ$ = 2.1 suggests a conventional fully gapped superconductor. With applied pressure a second structural phase transition occurs which results in an 8% reduction in the c/a ratio of lattice parameters. We find that superconductivity persists into this high pressure phase, although the transition temperature is monotonically suppressed with increasing pressure. Comparison of these Ni-P data as well as layered Fe-As and Ni-As superconductor indicates that reduced dimensionality can be a mechanism for increasing the transition temperature.
dc.description6 pages, 7 figures, New Title, minor changes, published in PRB as an editor's suggestion
dc.identifierhttps://arxiv.org/abs/0902.0663
dc.identifierhttp://arxiv.org/abs/0902.0663
dc.identifierPhys. Rev. B 79, 134507 (2009)
dc.identifierdoi:10.1103/PhysRevB.79.134507
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/226411
dc.subjectSuperconductivity
dc.subjectStrongly Correlated Electrons
dc.titleSuperconductivity and the Effects of Pressure and Structure in Single Crystalline SrNi$_2$P$_2$
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