Incommensurate Spin Dynamics in High Temperature Superconductor of Optimally Doped YBa2Cu3O7

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The spin dynamics of an optimally doped YBa2Cu3O7 (Tc = 93 K) crystal array have been investigated in a wide range of momentum and energy (Q - E) space using the time-of-flight neutron scattering method. Incommensurate spin modulation in Q is a characteristic feature, as it is in the under-doped YBa2Cu3O6.7 with a different incommensurability. A linear relationship between the incommensurability and Tc is proposed. Along with the discovery of the same incommensurability in under-doped La2-ySryCuO4, it may be a generic characteristic of the high-Tc oxide superconductor.
5 figures, 1 in 2 parts (6 total files)

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Superconductivity

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http://salesiana.dossiersoluciones.com/handle/123456789/30065

Consulte el texto completo en el siguiente enlace:

https://arxiv.org/abs/cond-mat/9912233
 http://arxiv.org/abs/cond-mat/9912233

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arXiv