ISSN:
0392-6737
Keywords:
Superconducting materials (excluding high-T c cuprates)
;
Nuclear magnetic resonance and relaxation
;
Conference proceedings
Source:
Springer Online Journal Archives 1860-2000
Topics:
Physics
Notes:
Summary An overview on some works recently carried out by means of pulsed NMR-NQR experiments is given. The choice of the arguments is aimed at providing a flash on the topics and phenomena most tipically studied with the afore-mentioned approach: from the antiferromagnets (AF) precursors of high-temperature superconductors upon charge and spin doping (such as CuO-doped Li, La2CuO4-doped Sr and Zn) to the doping regime leading to superconductivity in LASCO and YBCO with the related issues involving the comparison with the Fermi-liquid behaviour, the possible opening of a pseudo-spin-gap aboveT c and the anisotropy and field effect ratios belowT c, the latter also in relation to thes-wave ord-wave orbital coupling. Finally, the topic of the motions of the flux lines in YBCO is addressed, in particular by discussing some experiments based on spin-echo dephasing due to thermal excitations and in the presence of d.c. currents and pulsed magnetic fields.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF02462169
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