Abstract
A review is given of recent neutron scattering measurements on La 2−x Sr x CuO 4 and Y Ba 2 Cu 3 O 6+x single crystals. Well defined, modulated magnetic excitations are observed in a high quality single crystal of La 1.85 Sr 0.15 CuO 4. This crystal exhibits a sharp superconducting transition at 33K with a high Meissner effect. For magnetic excitation energies of 9meV and lower, the intensity drops substantially below 150K. Similar magnetic scattering of Y Ba 2 Cu 3 O 6+x in the superconducting region is now being sought.
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Shirane, G. (1989). Magnetic Correlations in High Tc Oxides in the Superconducting State. In: Fukuyama, H., Maekawa, S., Malozemoff, A.P. (eds) Strong Correlation and Superconductivity. Springer Series in Solid-State Sciences, vol 89. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-83836-1_23
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DOI: https://doi.org/10.1007/978-3-642-83836-1_23
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