Unconventional Superconductors
Mostrando 1-3 de 3 artigos, teses e dissertações.
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1. Ultrasound attenuation and collective modes in mixed d x2-y2 + id xy state of unconventional superconductors
We discuss two methods used for the study of unconventional superconductors: ultrasound attenuation and collective modes. These two methods, as well as microwave absorption, turn out to be coupled and have become very important now. Within models built by path integration technique we analyze some recent ideas concerning possible realization of the mixture o
Brazilian Journal of Physics. Publicado em: 2003-12
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2. Unconventional magnetic properties of cuprates
Recently experiments on high critical temperature superconductors have shown that the doping levels and the superconducting gap are usually not uniform properties but strongly dependent on their positions inside a given sample. We show here that the large diamagnetic signal above the critical temperature Tc and the unusual temperature dependence of the upper
Brazilian Journal of Physics. Publicado em: 2003-12
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3. VORTEX STATES IN UNCONVENTIONAL SUPERCONDUCTORS / ESTADOS DE VORTICES EM SUPERCONDUTORES NAO-CONVENCIONAIS
The theory of Bardeen, Cooper and Schrieffer (BCS) had great success in explaining most properties of superconducting materials. These materials, where BCS applies, are denominated conventional superconductors. the experimental evidence of unconventional superconductivity in several materials reopened discussions about the phenomenon. While, in conventional
Publicado em: 2002