Excitations from a Bose-Einstein condensate of magnons in coupled spin ladders

V. O. Garlea, A. Zheludev, 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

51 Citations (Scopus)

Abstract

The weakly coupled quasi-one-dimensional spin ladder compound (CH3)2CHNH3CuCl3 is studied by neutron scattering in magnetic fields exceeding the critical field of Bose-Einstein condensation of magnons. Commensurate long-range order and the associated Goldstone mode are detected and found to be similar to those in reference to spin-dimer materials. However, for the upper two massive magnon branches, the observed behavior is totally different, culminating in a drastic collapse of excitation bandwidth beyond the transition point.

Original languageEnglish
Article number167202
JournalPhysical Review Letters
Volume98
Issue number16
DOIs
Publication statusPublished - 2007 Apr 19
Externally publishedYes

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Bose-Einstein condensates
ladders
magnons
transition points
excitation
neutron scattering
condensation
dimers
bandwidth
magnetic fields

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Garlea, V. O., Zheludev, A., Masuda, T., Manaka, H., Regnault, L. P., Ressouche, E., ... Boehm, M. (2007). Excitations from a Bose-Einstein condensate of magnons in coupled spin ladders. Physical Review Letters, 98(16), [167202]. https://doi.org/10.1103/PhysRevLett.98.167202

Excitations from a Bose-Einstein condensate of magnons in coupled spin ladders. / Garlea, V. O.; Zheludev, A.; Masuda, T.; Manaka, H.; Regnault, L. P.; Ressouche, E.; Grenier, B.; Chung, Jaiho; Qiu, Y.; Habicht, K.; Kiefer, K.; Boehm, M.

In: Physical Review Letters, Vol. 98, No. 16, 167202, 19.04.2007.

Research output: Contribution to journalArticle

Garlea, VO, Zheludev, A, Masuda, T, Manaka, H, Regnault, LP, Ressouche, E, Grenier, B, Chung, J, Qiu, Y, Habicht, K, Kiefer, K & Boehm, M 2007, 'Excitations from a Bose-Einstein condensate of magnons in coupled spin ladders', Physical Review Letters, vol. 98, no. 16, 167202. https://doi.org/10.1103/PhysRevLett.98.167202
Garlea VO, Zheludev A, Masuda T, Manaka H, Regnault LP, Ressouche E et al. Excitations from a Bose-Einstein condensate of magnons in coupled spin ladders. Physical Review Letters. 2007 Apr 19;98(16). 167202. https://doi.org/10.1103/PhysRevLett.98.167202
Garlea, V. O. ; Zheludev, A. ; Masuda, T. ; Manaka, H. ; Regnault, L. P. ; Ressouche, E. ; Grenier, B. ; Chung, Jaiho ; Qiu, Y. ; Habicht, K. ; Kiefer, K. ; Boehm, M. / Excitations from a Bose-Einstein condensate of magnons in coupled spin ladders. In: Physical Review Letters. 2007 ; Vol. 98, No. 16.
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