TY - JOUR
T1 - Structure and paramagnetism in weakly correlated Y8Co 5
AU - Klimczuk, T.
AU - Sidorov, V. A.
AU - Szajek, A.
AU - Werwiński, M.
AU - Kimber, S. A.J.
AU - Kozub, A. L.
AU - Safarik, D.
AU - Thompson, J. D.
AU - Cava, R. J.
PY - 2013/3/27
Y1 - 2013/3/27
N2 - We report the basic physical properties of monoclinic Y8Co 5 determined by means of magnetic susceptibility, electrical resistivity, and specific heat measurements. The crystal structure of Y 8Co5 is monoclinic (P21/c) with lattice parameters a = 7.0582(6) Å, b = 7.2894(6) Å, c = 24.2234(19) Å, and β = 102.112(6)° as refined by using synchrotron powder x-ray diffraction data. The compound shows temperature independent paramagnetism with χ0 = 2.1 × 10-3 emu mol-1 and Sommerfeld parameter γ = 63 mJ mol-1 K-2. The calculated Wilson ratio for Y8Co5, RW = 1.4, is close to that expected for a free electron gas RW = 1. Low temperature resistivity under high pressure does not reveal superconductivity in this compound down to 1.2 K, up to hydrostatic pressures of 5.56 GPa. Band structure calculations (full-potential linearized augmented plane wave, FP-LAPW) derive the Stoner exchange interaction parameter S = 0.24, excluding magnetic behavior for Y 8Co5.
AB - We report the basic physical properties of monoclinic Y8Co 5 determined by means of magnetic susceptibility, electrical resistivity, and specific heat measurements. The crystal structure of Y 8Co5 is monoclinic (P21/c) with lattice parameters a = 7.0582(6) Å, b = 7.2894(6) Å, c = 24.2234(19) Å, and β = 102.112(6)° as refined by using synchrotron powder x-ray diffraction data. The compound shows temperature independent paramagnetism with χ0 = 2.1 × 10-3 emu mol-1 and Sommerfeld parameter γ = 63 mJ mol-1 K-2. The calculated Wilson ratio for Y8Co5, RW = 1.4, is close to that expected for a free electron gas RW = 1. Low temperature resistivity under high pressure does not reveal superconductivity in this compound down to 1.2 K, up to hydrostatic pressures of 5.56 GPa. Band structure calculations (full-potential linearized augmented plane wave, FP-LAPW) derive the Stoner exchange interaction parameter S = 0.24, excluding magnetic behavior for Y 8Co5.
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U2 - 10.1088/0953-8984/25/12/125701
DO - 10.1088/0953-8984/25/12/125701
M3 - Article
C2 - 23448945
AN - SCOPUS:84874877832
SN - 0953-8984
VL - 25
JO - Journal of Physics Condensed Matter
JF - Journal of Physics Condensed Matter
IS - 12
M1 - 125701
ER -