Browsing by Subject "Supercondutividade"
Now showing items 1-6 of 6
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Contribuição para o estudo do efeito magnetocalórico inverso
| Posted on: 12 dez. 2009When we apply a magnetic field on a ferromagnetic material, it is expected that the magnetic order increases with this field and, therefore, its magnetic entropy decreases. This effect is known as magnetocaloric effect ... -
Diagrama de fases e ponto crítico quântico no CeCoIn5-xSnx: efeitos de pressão e concentração
| Posted on: 01 jan. 2007The family of CeTIn5 materials (T=Rh,Ir,Co) has become a subject of intense research once they exibit several interesting phenomena such as pressure-induced superconductivity, coexistence of antiferromagnetism and ... -
Estudo da Supercondutividade Exótica: sistemas de multibandas
| Posted on: 01 jun. 2010Multi-band systems such as inter-metallic and heavy fermion compounds have quase-particles arising from different orbitals at their Fermi surface. Since these quase-particles have di®erent masses or densities, there is a ... -
Estudos sobre o comportamento não-convencional de supercondutores cupratos de alta temperatura crítica
| Posted on: 01 jan. 2011While low temperature superconductors have metallic normal phases that are well characterized, the normal phase of the high Tc cuprates present many unconventional properties that still demand a global and more comprehensive ... -
Ponto crítico quântico supercondutor em sistemas multi-bandas
| Posted on: 01 jan. 2010The study of quantum phase transitions provides a new route to ¯nd and understand unconventional phases in Condensed Matter Physics. The past decades have seen a sub- stantial rejuvenation of interest in this area of study, ...