http://www.cnr.it/ontology/cnr/individuo/prodotto/ID263742
One-magnon Raman scattering in La2CuO4: The origin of the field-induced mode (Articolo in rivista)
- Type
- Label
- One-magnon Raman scattering in La2CuO4: The origin of the field-induced mode (Articolo in rivista) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi
- 10.1103/PhysRevB.72.140401 (literal)
- Alternative label
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori
- M.B. Silva Neto (1); L. Benfatto (2) (literal)
- Pagina inizio
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url
- http://prb.aps.org/abstract/PRB/v72/i14/e140401 (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume
- Rivista
- Note
- ISI Web of Science (WOS) (literal)
- Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni
- (1) Institute for Theoretical Physics, University of Utrecht, P.O. Box 80.195, 3508 TD, Utrecht, The Netherlands
(2) CNR-SMC-INFM and Department of Physics, University of Rome \"La Sapienza,\" Piazzale Aldo Moro 5, 00185 Rome, Italy (literal)
- Titolo
- One-magnon Raman scattering in La2CuO4: The origin of the field-induced mode (literal)
- Abstract
- We investigate the one-magnon Raman scattering in the layered antiferromagnetic La2CuO4 compound. We find that the Raman signal is composed by two one-magnon peaks: one in the B-1g channel, corresponding to the Dzyaloshinskii-Moryia mode, and another in the B-3g channel, corresponding to the XY mode. Furthermore, we show that a peak corresponding to the XY mode can be induced in the planar (RR) geometry when a magnetic field is applied along the easy axis for the sublattice magnetization. The appearance of such a field-induced mode signals the existence of a magnetic state above the Neel temperature T-N, where the direction of the weak-ferromagnetic moment lies within the CuO2 planes. (literal)
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