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

Research output: Contribution to journal › Article › peer-review

50 Scopus citations

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",

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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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