منابع مشابه
ELECTRON TUNNELLING IN HIGH-Tc”Nb3Ge” FILMS
Energy gap structure associated with superconducting Nb,Ge has been observed on the normal side of Al-Nb3Ge proximity sandwiches. The possible use of tunnelling junctions of this type to study the electron-phonon spectra of Ift̂ Ge is pointed out. Single particle tunnelling measurements are in principle a powerful technique for obtaining the electron-phonon spectral function aF(w). While procedu...
متن کاملUnderstanding High Tc Superconductivity ∗.
I briefly review several key issues in understanding the cuprate superconductors from the point of view of doped-Mott-insulator. Then I present an effective low-energy theory and show that the phase diagram of such a model includes an anti-ferromagnetic (AF) phase, a superconducting state, and a pseudogap phase at low doping and low temperature, consistent with the experimental one. The dual to...
متن کاملUnderstanding High Tc Superconductivity ∗.
I briefly review several key issues in understanding the cuprate superconductors from the point of view of doped-Mott-insulator. Then I present an effective low-energy theory and show that the phase diagram of such a model includes an anti-ferromagnetic (AF) phase, a superconducting state, and a pseudogap phase at low doping and low temperature, consistent with the experimental one. The dual to...
متن کاملConsilience of High-Tc Theories
Improvements both in the quality and in the variety of experiments on high-temperature superconductors have yielded new insights into the microscopic origins of pairing. A number of competing theories have already been ruled out. Some of the more promising descriptions – gauge theories, coupled-chains, nesting instabilities, nodal liquids, and stripes – share features in common. A unified pictu...
متن کاملMagnetism and high Tc superconductors
The magnetic properties of the copper oxide planes in hight T~ superconductors are represented by a planar 2-d antiferromagnet on a square lattice. We model the magnetic effect of the addition of holes through doping by the replacement of antiferromagnetic with ferromagnetic plaquettes thereby facilitating the creation of vorticeslantivortices. These magnetic
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ژورنال
عنوان ژورنال: Le Journal de Physique Colloques
سال: 1978
ISSN: 0449-1947
DOI: 10.1051/jphyscol:19786179