Dynamics of quantum spin liquid and spin solid phases in IPA-Cu Cl3 under an applied magnetic field studied with neutron scattering

A. Zheludev, V. O. Garlea, T. Masuda, H. Manaka, L. P. Regnault, E. Ressouche, B. Grenier, Jaiho Chung, Y. Qiu, K. Habicht, K. Kiefer, M. Boehm

Research output: Contribution to journalArticle

33 Citations (Scopus)

Abstract

Inelastic and elastic neutron scattering is used to study spin correlations in the quasi-one-dimensional quantum antiferromagnet IPA-Cu Cl3 in strong applied magnetic fields. A condensation of magnons and commensurate transverse long-range ordering is observe at a critical field Hc =9.5 T. The field dependencies of the energies and polarizations of all magnon branches are investigated both below and above the transition point. Their dispersion is measured across the entire one-dimensional Brillouin zone in magnetic fields up to 14 T. The critical wave vector of magnon spectrum truncation is found to shift from hc ≈0.35 at H< Hc to hc =0.25 for H> Hc. A drastic reduction of magnon bandwidths in the ordered phase is observed and studied in detail. New features of the spectrum, presumably related to this bandwidth collapse, are observed just above the transition field.

Original languageEnglish
Article number054450
JournalPhysical Review B - Condensed Matter and Materials Physics
Volume76
Issue number5
DOIs
Publication statusPublished - 2007 Aug 29
Externally publishedYes

Fingerprint

Neutron scattering
solid phases
neutron scattering
Magnetic fields
bandwidth
Bandwidth
Elastic scattering
Liquids
transition points
liquids
Brillouin zones
magnetic fields
magnons
Condensation
elastic scattering
condensation
Polarization
shift
polarization
approximation

ASJC Scopus subject areas

  • Condensed Matter Physics

Cite this

Dynamics of quantum spin liquid and spin solid phases in IPA-Cu Cl3 under an applied magnetic field studied with neutron scattering. / Zheludev, A.; Garlea, V. O.; Masuda, T.; Manaka, H.; Regnault, L. P.; Ressouche, E.; Grenier, B.; Chung, Jaiho; Qiu, Y.; Habicht, K.; Kiefer, K.; Boehm, M.

In: Physical Review B - Condensed Matter and Materials Physics, Vol. 76, No. 5, 054450, 29.08.2007.

Research output: Contribution to journalArticle

Zheludev, A, Garlea, VO, Masuda, T, Manaka, H, Regnault, LP, Ressouche, E, Grenier, B, Chung, J, Qiu, Y, Habicht, K, Kiefer, K & Boehm, M 2007, 'Dynamics of quantum spin liquid and spin solid phases in IPA-Cu Cl3 under an applied magnetic field studied with neutron scattering', Physical Review B - Condensed Matter and Materials Physics, vol. 76, no. 5, 054450. https://doi.org/10.1103/PhysRevB.76.054450
Zheludev, A. ; Garlea, V. O. ; Masuda, T. ; Manaka, H. ; Regnault, L. P. ; Ressouche, E. ; Grenier, B. ; Chung, Jaiho ; Qiu, Y. ; Habicht, K. ; Kiefer, K. ; Boehm, M. / Dynamics of quantum spin liquid and spin solid phases in IPA-Cu Cl3 under an applied magnetic field studied with neutron scattering. In: Physical Review B - Condensed Matter and Materials Physics. 2007 ; Vol. 76, No. 5.
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AB - Inelastic and elastic neutron scattering is used to study spin correlations in the quasi-one-dimensional quantum antiferromagnet IPA-Cu Cl3 in strong applied magnetic fields. A condensation of magnons and commensurate transverse long-range ordering is observe at a critical field Hc =9.5 T. The field dependencies of the energies and polarizations of all magnon branches are investigated both below and above the transition point. Their dispersion is measured across the entire one-dimensional Brillouin zone in magnetic fields up to 14 T. The critical wave vector of magnon spectrum truncation is found to shift from hc ≈0.35 at H< Hc to hc =0.25 for H> Hc. A drastic reduction of magnon bandwidths in the ordered phase is observed and studied in detail. New features of the spectrum, presumably related to this bandwidth collapse, are observed just above the transition field.

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