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 language | English |
|---|---|
| Article number | 167202 |
| Journal | Physical Review Letters |
| Volume | 98 |
| Issue number | 16 |
| DOIs | |
| Publication status | Published - 2007 Apr 19 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Physics and Astronomy(all)
Cite this
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 journal › Article
}
TY - JOUR
T1 - Excitations from a Bose-Einstein condensate of magnons in coupled spin ladders
AU - Garlea, V. O.
AU - Zheludev, A.
AU - Masuda, T.
AU - Manaka, H.
AU - Regnault, L. P.
AU - Ressouche, E.
AU - Grenier, B.
AU - Chung, Jaiho
AU - Qiu, Y.
AU - Habicht, K.
AU - Kiefer, K.
AU - Boehm, M.
PY - 2007/4/19
Y1 - 2007/4/19
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=34247378975&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=34247378975&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.98.167202
DO - 10.1103/PhysRevLett.98.167202
M3 - Article
AN - SCOPUS:34247378975
VL - 98
JO - Physical Review Letters
JF - Physical Review Letters
SN - 0031-9007
IS - 16
M1 - 167202
ER -