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Strain effect analysis on the thermoelectric figure of merit in n-type Si/Ge nanocomposites J. Appl. Phys. 111, 054318 (2012); 10.1063/1.3693307Theoretical study of the electrical transport of nickel nanowires and a single atomic chainThe thermal conductivity and electrical resistivity of a suspended nickel nanowire have been measured for T = 15-300 K. The temperature dependence of the thermal conductivity and the Lorenz number strongly differ from the bulk. The comparison of the transports in the Ni nanowire shows, that at temperatures 75Ͻ T Ͻ 300 K Wiedemann-Franz ͑WF͒ law holds, whereas at temperatures T Ͻ 75 K the WF law is violated, indicating that thermal current in this material is suppressed more than electrical current. The results are explained by combined effect of confined dimension, enhanced disorder, and grown contribution of N-processes. 063101-2 Ou et al. Appl. Phys. Lett. 92, 063101 ͑2008͒ 063101-3 Ou et al. Appl. Phys. Lett. 92, 063101 ͑2008͒

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