Download e-book for kindle: Physical properties of thin metal films by G P Zhigal'skii; Brian K Jones

By G P Zhigal'skii; Brian K Jones

content material: Conduction in Discontinuous motion pictures. Size-effects in skinny steel movies. inner Mechanical Stresses and Voids in skinny steel movies. electric Noise in skinny movies and Thin-Film buildings. Non-linear Conduction and Non-Equilibrium Noise in skinny movies. Degradation Mechanisms in skinny steel Films.

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P. K. Jones 22 Factors that determine the properties of films (clusters). If the adsorbed atom does not participate in the formation of clusters, it re-evaporates because it may receive sufficient energy from its thermal motion to come off the substrate. The lifetime of metal atoms on a substrate surface fluctuates about some average value, , which is also called the adhesion time. The lifetime depends on the temperature of the substrate and the strength of the bond between the atoms of the metal and the substrate surface.

4). 11 Influence of an external electrical field on the potential barrier at the metal–vacuum boundary. P. K. Jones Conduction in discontinuous films 45 The maximum of the potential barrier is at a distance x0 from the surface of the metal. This distance is given by the condition:  dW dx  ¼ ÀeE þ e2 ¼0 16"0 x20 ð2:12Þ pffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffiffi which gives x0 ¼ e=16"0 E . 7. 16 was derived first by Schottky and bears his name. The emission of electrons under the action of an electric field is called cold emission or Schottky emission.

In this case a non-metallic type of electrical conductivity is observed in the film which is seen as a negative temperature coefficient of resistance (TCR). A negative TCR is observed frequently in films of chromium and the refractory metals which have a high chemical affinity with oxygen. 3 The effect of heat treatment on the electrical conductivity Freshly made metal films can exhibit instability in their physical properties during storage with the phase and structural conditions changing. P.

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