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Evidence for incommensurate spin fluctuations in Sr_2RuO_4

Y. Sidis·M. Braden·P. Bourges·B. Hennion. S. Nishizaki·Y. Maeno·Y. Mori
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Abstract

We report first inelastic neutron scattering measurements in the normal state of Sr_2RuO_4 that reveal the existence of incommensurate magnetic spin fluctuations located at ${\bf q}_0=(\pm 0.6π/a, \pm 0.6π/a, 0)$. This finding confirms recent band structure calculations that have predicted incommensurate magnetic responses related to dynamical nesting properties of its Fermi surface.

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Y. Sidis, M. Braden, P. Bourges, B. Hennion. S. Nishizaki, Y. Maeno, Y. Mori. 1999-04-23. Evidence for incommensurate spin fluctuations in Sr_2RuO_4. https://doi.org/10.1103/physrevlett.83.3320

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