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NF Mott, H Jones (1958)
The Theory of the Properties of Metals and Alloys
JL Jorda (1990)
La Based Alloys and Compounds (Materials?The Landolt?B�rnstein Database)
G Grimvall (1981)
The Electron?Phonon Interaction in Metals
The superconducting phase transition at $$T_\mathrm{c} = 2.3$$ T c = 2.3 K was observed for the electrical resistivity $$\rho ({T})$$ ρ ( T ) and magnetic susceptibility $$\chi (T)$$ χ ( T ) measurements in the ternary compound La $$_{5}\hbox {Ni}_{2}\hbox {Si}_{3}$$ 5 Ni 2 Si 3 that crystallizes in the hexagonal-type structure. Although a single-phase character with the nominal stoichiometry of the synthesized sample was confirmed, a small trace of the La–Ni phase was found, being probably responsible for the superconducting behaviour in the investigated compound. The magnetization loop recorded at $${T} = 0.5$$ T = 0.5 K resembles a star-like shape which indicates that the density of the critical current can be strongly suppressed by a magnetic field. The low- $$T _{\rho }(T)$$ T ρ ( T ) and specific heat $${C}_\mathrm{p}({T})$$ C p ( T ) data in the normal state reveal simple metallic behaviour. No clear evidence of a phase transition to any long- or short-range order was found for $$C_\mathrm{p}(T)$$ C p ( T ) measurements in the T-range of 0.4–300 K.
Journal of Low Temperature Physics – Springer Journals
Published: Jul 12, 2017
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