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Chapter and Conference Paper
Inversion of the Biot-Savart Law: An Approach Based on Discrete Sine and Cosine Transforms
In this paper, we expose the key features of an algorithm based on the DFT (Discrete Fourier Transform) that permits one to invert the Biot-Savart law without artifacts although the number of data is finite.
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Chapter
Critical Behavior of the Thermal Conductivity near a Magnetic Phase Transition
The phenomenological Weiss molecular field approximation (MFA) allows one to use the dominant coupling forces between neighbouring spins in order to desribe the production of a spontaneous magnetisation below ...
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Chapter
Effect of Fluctuations on the Thermal Conductivity of High-TC Superconductors
The superconductivity fluctuation contribution kfl to the thermal conductivity of Bi2Sr1.8Ca1.2Cu2O8+y and DyBa2Cu2O7-x polycrystals is extracted from precise experimental data. A crossover from 2D to 3D behavior...
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Chapter
Electric Field Effects in High-T c Superconductors
The concentration of mobile carriers (electrons and holes) governs the electron transport of any substance. In semiconductors essential electric field effects are prevalent. Only little influence of the electr...
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Chapter
Fluctuation Phenomena in Superconductors
During the first half of this century after the prominent discovery done by Kamerlingh-Onnes, the problem of fluctuations, smearing the superconducting transition, had not even been taken into account: in bulk...