High-pressure structural parameters of the superconductors CeMIn{sub 5} and PuMGa{sub 5} (M=Co,Rh)

Journal Article · Tue Nov 01 00:00:00 EST 2005 · Physical Review. B, Condensed Matter and Materials Physics

DOI:https://doi.org/10.1103/PhysRevB.72.184508· OSTI ID:20719823

Normile, P S; Heathman, S; Idiri, M; Boulet, P; Rebizant, J; Wastin, F; Lander, G H; Le Bihan, T; Lindbaum, A ^[1]

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1. European Commission, JRC, Institute for Transuranium Elements, Postfach 2340, D-76125 Karlsruhe (Germany)

High-pressure, angular-dispersive, x-ray diffraction measurements have been performed on ''115'' superconductors CeMIn{sub 5} and PuMGa{sub 5} for M=Co and Rh. The principal results are of the pressure-dependence of the ratio of the tetragonal lattice parameters, c/a, in each system, which are presented for the purpose of understanding the role that this parameter plays in controlling the value of the superconducting temperature T{sub c}. In none of the systems investigated does c/a scale linearly with the value of T{sub c} under pressure, suggesting that it is not the main parameter to control T{sub c}. Values of bulk modulus determined from these measurements are also presented.

• OSTI ID: 20719823
• Journal Information: Physical Review. B, Condensed Matter and Materials Physics, Vol. 72, Issue 18; Other Information: DOI: 10.1103/PhysRevB.72.184508; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 1098-0121
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CERIUM ALLOYS
COBALT ALLOYS
GALLIUM ALLOYS
INDIUM ALLOYS
LATTICE PARAMETERS
PHASE TRANSFORMATIONS
PLUTONIUM ALLOYS
PRESSURE DEPENDENCE
SOLIDS
TETRAGONAL LATTICES
TRANSITION TEMPERATURE
TYPE-II SUPERCONDUCTORS
X-RAY DIFFRACTION