Neutron scattering study of two-magnon states in the quantum magnet copper nitrate

D. A. Tennant; C. Broholm; D. H. Reich; S. E. Nagler; G. E. Granroth; T. Barnes; K. Damle; G. Xu; Y. Chen; B. C. Sales

doi:10.1103/PhysRevB.67.054414

Neutron scattering study of two-magnon states in the quantum magnet copper nitrate

D. A. Tennant, C. Broholm, D. H. Reich, S. E. Nagler, G. E. Granroth, T. Barnes, K. Damle, G. Xu, Y. Chen, B. C. Sales

Direct Geometry

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Abstract

We report measurements of the two-magnon states in a dimerized antiferromagnetic chain material, copper nitrate (formula presented) Using inelastic neutron scattering we have measured the one- and two-magnon excitation spectra in a large single crystal. The data are in excellent agreement with a perturbative expansion of the alternating Heisenberg Hamiltonian from the strongly dimerized limit. The expansion predicts a two-magnon bound state for (formula presented) which is consistent with the neutron scattering data.

Original language	English
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	67
Issue number	5
DOIs	https://doi.org/10.1103/PhysRevB.67.054414
State	Published - Feb 27 2003

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10.1103/PhysRevB.67.054414

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title = "Neutron scattering study of two-magnon states in the quantum magnet copper nitrate",

abstract = "We report measurements of the two-magnon states in a dimerized antiferromagnetic chain material, copper nitrate (formula presented) Using inelastic neutron scattering we have measured the one- and two-magnon excitation spectra in a large single crystal. The data are in excellent agreement with a perturbative expansion of the alternating Heisenberg Hamiltonian from the strongly dimerized limit. The expansion predicts a two-magnon bound state for (formula presented) which is consistent with the neutron scattering data.",

author = "Tennant, \{D. A.\} and C. Broholm and Reich, \{D. H.\} and Nagler, \{S. E.\} and Granroth, \{G. E.\} and T. Barnes and K. Damle and G. Xu and Y. Chen and Sales, \{B. C.\}",

year = "2003",

month = feb,

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doi = "10.1103/PhysRevB.67.054414",

language = "English",

volume = "67",

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T1 - Neutron scattering study of two-magnon states in the quantum magnet copper nitrate

AU - Tennant, D. A.

AU - Broholm, C.

AU - Reich, D. H.

AU - Nagler, S. E.

AU - Granroth, G. E.

AU - Barnes, T.

AU - Damle, K.

AU - Xu, G.

AU - Chen, Y.

AU - Sales, B. C.

PY - 2003/2/27

Y1 - 2003/2/27

N2 - We report measurements of the two-magnon states in a dimerized antiferromagnetic chain material, copper nitrate (formula presented) Using inelastic neutron scattering we have measured the one- and two-magnon excitation spectra in a large single crystal. The data are in excellent agreement with a perturbative expansion of the alternating Heisenberg Hamiltonian from the strongly dimerized limit. The expansion predicts a two-magnon bound state for (formula presented) which is consistent with the neutron scattering data.

AB - We report measurements of the two-magnon states in a dimerized antiferromagnetic chain material, copper nitrate (formula presented) Using inelastic neutron scattering we have measured the one- and two-magnon excitation spectra in a large single crystal. The data are in excellent agreement with a perturbative expansion of the alternating Heisenberg Hamiltonian from the strongly dimerized limit. The expansion predicts a two-magnon bound state for (formula presented) which is consistent with the neutron scattering data.

UR - https://www.scopus.com/pages/publications/10744223041

U2 - 10.1103/PhysRevB.67.054414

DO - 10.1103/PhysRevB.67.054414

M3 - Article

AN - SCOPUS:10744223041

SN - 1098-0121

VL - 67

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 5

ER -

Neutron scattering study of two-magnon states in the quantum magnet copper nitrate

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