Incommensurate Spin Dynamics in High Temperature Superconductor of Optimally Doped YBa2Cu3O7

M. Arai; T. Nishijima; Y. Endoh; A. W. Garrett; S. Tajima; K. Tomimoto; Y. Shiohara; C. D. Frost; S. M. Bennington

Incommensurate Spin Dynamics in High Temperature Superconductor of Optimally Doped YBa2Cu3O7

Superconductivity 2007-05-23 v1

Authors: M. Arai , T. Nishijima , Y. Endoh , A. W. Garrett , S. Tajima , K. Tomimoto , Y. Shiohara , C. D. Frost , S. M. Bennington

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Abstract

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.

Keywords

spin dynamics incommensurate modulation yba2cu3o7 high-tc superconductor neutron scattering optimally doped

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@article{arxiv.cond-mat/9912233,
  title  = {Incommensurate Spin Dynamics in High Temperature Superconductor of Optimally Doped YBa2Cu3O7},
  author = {M. Arai and T. Nishijima and Y. Endoh and A. W. Garrett and S. Tajima and K. Tomimoto and Y. Shiohara and C. D. Frost and S. M. Bennington},
  journal= {arXiv preprint arXiv:cond-mat/9912233},
  year   = {2007}
}

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5 figures, 1 in 2 parts (6 total files)

Incommensurate Spin Dynamics in High Temperature Superconductor of Optimally Doped YBa2Cu3O7

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