We develop a model for the recrystallization of Si films that are traversed by a molten zone. The model simulates the branching behavior of low-angle grain-boundary defects in these films to a... Show moreWe develop a model for the recrystallization of Si films that are traversed by a molten zone. The model simulates the branching behavior of low-angle grain-boundary defects in these films to a remarkable degree. The simulated subboundary patterns scale approximately as the square root of the scan velocity, in excellent agreement with experiment. Show less
A comparison was made between four low-temperature properties of LaCu2Si2 and CeCu2Si2. Whereas LaCu2Si2 behaves like a normal metal, CeCu2Si2 shows (i) low-temperature anomalies typical of ... Show moreA comparison was made between four low-temperature properties of LaCu2Si2 and CeCu2Si2. Whereas LaCu2Si2 behaves like a normal metal, CeCu2Si2 shows (i) low-temperature anomalies typical of "unstable 4f shell" behavior and (ii) a transition into a superconducting state at Tc≃0.5 K. Our experiments demonstrate for the first time that superconductivity can exist in a metal in which many-body interactions, probably magnetic in origin, have strongly renormalized the properties of the conduction-electron gas. Show less
