Novel neutron resonance mode in dx2-y2-wave superconductors

I. Eremin; D. K. Morr; A. V. Chubukov; K. H. Bennemann; M. R. Norman

doi:10.1103/PhysRevLett.94.147001

Novel neutron resonance mode in d_x2-y2-wave superconductors

I. Eremin, D. K. Morr, A. V. Chubukov, K. H. Bennemann, M. R. Norman

Physics and Astronomy (Twin Cities)

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Abstract

We show that a new resonant magnetic excitation at incommensurate momenta, observed recently by inelastic neutron scattering experiments on YBa ₂Cu₃O_6.85 and YBa₂Cu ₃O_6.6, is a spin exciton. Its location in the Brillouin zone and its frequency are determined by the momentum dependence of the particle-hole continuum. We identify several features that distinguish this novel mode from the previous resonance mode observed near Q = (π,π).

Original language	English (US)
Article number	147001
Journal	Physical review letters
Volume	94
Issue number	14
DOIs	https://doi.org/10.1103/PhysRevLett.94.147001
State	Published - Apr 15 2005

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abstract = "We show that a new resonant magnetic excitation at incommensurate momenta, observed recently by inelastic neutron scattering experiments on YBa 2Cu3O6.85 and YBa2Cu 3O6.6, is a spin exciton. Its location in the Brillouin zone and its frequency are determined by the momentum dependence of the particle-hole continuum. We identify several features that distinguish this novel mode from the previous resonance mode observed near Q = (π,π).",

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AU - Eremin, I.

AU - Morr, D. K.

AU - Chubukov, A. V.

AU - Bennemann, K. H.

AU - Norman, M. R.

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AB - We show that a new resonant magnetic excitation at incommensurate momenta, observed recently by inelastic neutron scattering experiments on YBa 2Cu3O6.85 and YBa2Cu 3O6.6, is a spin exciton. Its location in the Brillouin zone and its frequency are determined by the momentum dependence of the particle-hole continuum. We identify several features that distinguish this novel mode from the previous resonance mode observed near Q = (π,π).

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Novel neutron resonance mode in d_x2-y2-wave superconductors

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