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Article Dans Une Revue Physical Review B: Condensed Matter and Materials Physics (1998-2015) Année : 2004

Resonant magnetic mode in superconducting two-leg ladders

Résumé

The spin dynamics of a doped 2-leg spin ladder is investigated by numerical techniques. We show that a hole pair-magnon boundstate evolves at finite hole doping into a sharp magnetic excitation below the two-particle continuum. This is supported by a field theory argument based on a SO(6)-symmetric ladder. Similarities and differences with the resonant mode of the high-T$_c$ cuprates are discussed.

Dates et versions

hal-00133201 , version 1 (23-02-2007)

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Didier Poilblanc, E. Orignac, S. R. White, Sylvain Capponi. Resonant magnetic mode in superconducting two-leg ladders. Physical Review B: Condensed Matter and Materials Physics (1998-2015), 2004, 69 (22), pp.220406. ⟨10.1103/PhysRevB.69.220406⟩. ⟨hal-00133201⟩
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