dorsal/arxiv
View SchemaPhonon Assisted Multimagnon Optical Absorption and Long Lived Two-Magnon States in Undoped Lamellar Copper Oxides
| Authors | J. Lorenzana, G. A. Sawatzky |
|---|---|
| Categories | |
| ArXiv ID | supr-con/9501001 |
| URL | https://arxiv.org/abs/supr-con/9501001 |
| DOI | 10.1103/PhysRevLett.74.1867 |
| Journal | Phys. Rev. Lett., 74,1867(1995) |
Abstract
We calculate the effective charge for multimagnon infrared (IR) absorption assisted by phonons in the parent insulating compounds of cuprate superconductors and the spectra for two-magnon absorption using interacting spin-wave theory. Recent measured bands in the mid IR [Perkins et al. Phys. Rev. Lett. {\bf 71} 1621 (1993)] are interpreted as involving one phonon plus a two-magnon virtual bound state, and one phonon plus higher multimagnon absorption processes. The virtual bound state consists of a narrow resonance occurring when the magnon pair has total momentum close to $(\pi,0)$.
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"abstract": "We calculate the effective charge for multimagnon infrared (IR) absorption\nassisted by phonons in the parent insulating compounds of cuprate\nsuperconductors and the spectra for two-magnon absorption using interacting\nspin-wave theory. Recent measured bands in the mid IR [Perkins et al. Phys.\nRev. Lett. {\\bf 71} 1621 (1993)] are interpreted as involving one phonon plus a\ntwo-magnon virtual bound state, and one phonon plus higher multimagnon\nabsorption processes. The virtual bound state consists of a narrow resonance\noccurring when the magnon pair has total momentum close to $(\\pi,0)$.",
"arxiv_id": "supr-con/9501001",
"authors": [
"J. Lorenzana",
"G. A. Sawatzky"
],
"categories": [
"supr-con",
"cond-mat.supr-con",
"mtrl-th"
],
"doi": "10.1103/PhysRevLett.74.1867",
"journal_ref": "Phys. Rev. Lett., 74,1867(1995)",
"title": "Phonon Assisted Multimagnon Optical Absorption and Long Lived Two-Magnon States in Undoped Lamellar Copper Oxides",
"url": "https://arxiv.org/abs/supr-con/9501001"
},
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