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doi: 10.1038/s41467-023-38341-8 , 10.21203/rs.3.rs-1956614/v1 , 10.5281/zenodo.7828290 , 10.5281/zenodo.7828289 , 10.48550/arxiv.2208.03198
pmid: 37173301
pmc: PMC10182046
arXiv: 2208.03198
doi: 10.1038/s41467-023-38341-8 , 10.21203/rs.3.rs-1956614/v1 , 10.5281/zenodo.7828290 , 10.5281/zenodo.7828289 , 10.48550/arxiv.2208.03198
pmid: 37173301
pmc: PMC10182046
arXiv: 2208.03198
Abstract A photon carrying one unit of angular momentum can change the spin angular momentum of a magnetic system with one unit (ΔM s = ±1) at most. This implies that a two-photon scattering process can manipulate the spin angular momentum of the magnetic system with a maximum of two units. Herein we describe a triple-magnon excitation in α-Fe 2 O 3 , which contradicts this conventional wisdom that only 1- and 2-magnon excitations are possible in a resonant inelastic X-ray scattering experiment. We observe an excitation at exactly three times the magnon energy, along with additional excitations at four and five times the magnon energy, suggesting quadruple and quintuple-magnons as well. Guided by theoretical calculations, we reveal how a two-photon scattering process can create exotic higher-rank magnons and the relevance of these quasiparticles for magnon-based applications.
Condensed Matter - Materials Science, Strongly Correlated Electrons (cond-mat.str-el), Science, General Biochemistry,Genetics and Molecular Biology, Q, General Physics and Astronomy, Materials Science (cond-mat.mtrl-sci), FOS: Physical sciences, General Chemistry, Article, [PHYS] Physics [physics], Condensed Matter - Strongly Correlated Electrons
Condensed Matter - Materials Science, Strongly Correlated Electrons (cond-mat.str-el), Science, General Biochemistry,Genetics and Molecular Biology, Q, General Physics and Astronomy, Materials Science (cond-mat.mtrl-sci), FOS: Physical sciences, General Chemistry, Article, [PHYS] Physics [physics], Condensed Matter - Strongly Correlated Electrons
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 12 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Top 10% | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Top 10% |
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