نتایج جستجو برای: yba2cu3o7
تعداد نتایج: 1061 فیلتر نتایج به سال:
We describe small-angle neutron scattering (SANS) studies of vortex structures in the high Tc superconductor YBazCu307 in the mixed state. The SANS technique is a unique tool for probing the crystallography of a flux line arrangement in the bulk sample that can measure the values of the characteristic lengths and the effect of defects on lattice arrangement and orientation extremely accurately....
The electronic properties of YBa2Cu3O7-δ have been investigated by the energy-pseudopotential method within the local density approximation (LDA) with and without including generalized gradient corrections (GGC). The band structure, density of states and charge density of YBa2Cu3O7- have been calculated. The results are compared with other approaches such as LAPW, LCAO and LMTO for this syste...
Crystal-Lattice Coupling to theVortex-Melting Transition in YBa2Cu3O7 R. Lortz, C. Meingast, U. Welp, W. K. Kwok, and G.W. Crabtree Forschungszentrum Karlsruhe, Institut für Festkörperphysik, 76021 Karlsruhe, Germany Fakultät für Physik, Universität Karlsruhe, 76131 Karlsruhe, Germany Materials Science Division and Science and Technology Center for Superconductivity, Argonne National Laboratory...
In this paper I calculate the possible alteration of the gravitational field in a superconductor by using the time-dependent Ginzburg-Landau equations (TDGL). I compare the behaviour of a high-Tc superconductor (HTCS) like YBa2Cu3O7 (YBCO) with a classical low-Tc superconductor (LTCS) like Pb. Finally, I discuss what values of the parameters characterizing a superconductor can enhance the reduc...
The studies of the bipolar resistive switching effect in thin film heterojunctions (YBa2Cu3O7-δ /Ag) and (Nd 2-x Ce x CuO4-y /Ag) have exhibited the role of oxygen as a doping element in hole- and electron-doped HTSC compounds.
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