Measurement of Magnetic Relaxation in the peak regime of V3Si

Magnetization relaxation measurements are carried out in the Peak effect regime of superconducting V3Si crystal, using Quantum Design SQUID magnetometer. Relaxation in the increasing field scan is logarithmic in time, consistent with the theory of flux creep. The relaxation on the decreasing field scan however exhibits athermal behavior which is predominantly governed by the flux avalanches triggered by the small external field perturbation experienced by the superconductor during measurement scan in an inhomogeneous field.Comment: PDF, 17 pages including 9 figure

Minimum consumptions requirements: theoretical and quantitative implications for growth and distribution

The authors study the impact of a minimum consumption requirement on the rate of economic growth and the evolution of wealth distribution. The requirement introduces a positive dependence between the intertemporal elasticity of substitution and household wealth. This dependence implies a transition phase during which the growth rate of per-capita quantities rise toward their steady-state values and the distributions of wealth, consumption, and permanent income become more unequal. The authors calibrate the minimum consumption requirement to match estimates available for a sample of Indian villagers and find that these transitional effects are quantitatively significant and depend importantly on the economy's steady-state growth rate. NOTE: This paper refers to figures not currently available with this electronic version. For a hard copy of the figures, call the Research Department's Publications Desk at 215-574-6428 and ask for Working Paper 97-15.Consumption (Economics) ; Wealth