Evidence for incommensurate spin fluctuations in Sr_2RuO_4

Details Evidence for incommensurate spin fluctuations in Sr_2RuO_4 Evidence for incommensurate spin fluctuations in Sr_2RuO_4

1999-04-23

arxiv.org/abs/cond-mat/9904348v1

Phys. Rev. Lett., 83, 3320 (1999).

Physics

Condensed Matter

Superconductivity

Scientific paper

10.1103/PhysRevLett.83.3320

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 ${\bf q}_0=(\pm 0.6\pi/a, \pm 0.6\pi/a, 0)$. 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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