Abstract
The study of two-magnon spectra in a ferromagnetic chain with competing interactions suggests that the soft two-magnon bound state leads the ferromagnetic ground state to a new ground state with intermediate magnetization. Numerical calculations for finite chains support this result. We discuss the new state by adopting a quasi-particle picture for the bound state.
| Original language | English |
|---|---|
| Pages (from-to) | 234-236 |
| Number of pages | 3 |
| Journal | Journal of Magnetism and Magnetic Materials |
| Volume | 90 pt 91 |
| Publication status | Published - 1990 |
| Externally published | Yes |
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ASJC Scopus subject areas
- Condensed Matter Physics
Cite this
Instability of the ferromagnetic ground state in a quantum spin chain with competing interactions. / Harada, I.; Tonegawa, T.
In: Journal of Magnetism and Magnetic Materials, Vol. 90 pt 91, 1990, p. 234-236.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Instability of the ferromagnetic ground state in a quantum spin chain with competing interactions
AU - Harada, I.
AU - Tonegawa, T.
PY - 1990
Y1 - 1990
N2 - The study of two-magnon spectra in a ferromagnetic chain with competing interactions suggests that the soft two-magnon bound state leads the ferromagnetic ground state to a new ground state with intermediate magnetization. Numerical calculations for finite chains support this result. We discuss the new state by adopting a quasi-particle picture for the bound state.
AB - The study of two-magnon spectra in a ferromagnetic chain with competing interactions suggests that the soft two-magnon bound state leads the ferromagnetic ground state to a new ground state with intermediate magnetization. Numerical calculations for finite chains support this result. We discuss the new state by adopting a quasi-particle picture for the bound state.
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UR - http://www.scopus.com/inward/citedby.url?scp=0025669442&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0025669442
VL - 90 pt 91
SP - 234
EP - 236
JO - Journal of Magnetism and Magnetic Materials
JF - Journal of Magnetism and Magnetic Materials
SN - 0304-8853
ER -