The dynamics of linarite: Observations of magnetic excitations

K. C. Rule; B. Willenberg; M. Schäpers; A. U. B. Wolter; B. Büchner; S. -L. Drechsler; G. Ehlers; D. A. Tennant; R. A. Mole; J. S. Gardner; S. Süllow; S. Nishimoto

doi:10.1103/PhysRevB.95.024430

The dynamics of linarite: Observations of magnetic excitations

Strongly Correlated Electrons 2017-02-01 v3

Authors: K. C. Rule , B. Willenberg , M. Schäpers , A. U. B. Wolter , B. Büchner , S. -L. Drechsler , G. Ehlers , D. A. Tennant , R. A. Mole , J. S. Gardner , S. Süllow , S. Nishimoto

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Abstract

Here we present inelastic neutron scattering measurements from the frustrated, quantum spin-1/2 chain material linarite, PbCuSO_4(OH)_2. Time of flight data, taken at 0.5K and zero applied magnetic field reveals low-energy dispersive spin wave excitations below 1.5meV both parallel and perpendicular to the Cu-chain direction. From this we confirm that the interchain couplings within linarite are around 10% of the nearest neighbour intrachain interactions. We analyse the data within both linear spin-wave theory and density matrix renormalisation group theories and establish the main magnetic exchange interactions and the simplest realistic Hamiltonian for this material.

Keywords

inelastic neutron scattering linarite quantum spin-1/2 chain magnetic excitations spin wave density matrix renormalisation group

Cite

@article{arxiv.1611.00986,
  title  = {The dynamics of linarite: Observations of magnetic excitations},
  author = {K. C. Rule and B. Willenberg and M. Schäpers and A. U. B. Wolter and B. Büchner and S. -L. Drechsler and G. Ehlers and D. A. Tennant and R. A. Mole and J. S. Gardner and S. Süllow and S. Nishimoto},
  journal= {arXiv preprint arXiv:1611.00986},
  year   = {2017}
}

The dynamics of linarite: Observations of magnetic excitations

Abstract

Keywords

Cite

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