Quasiparticle Relaxation Dynamics in Two Distinct Gap Structures: La$_{0.67}$Ca$_{0.33}$MnO$_{3}$ and LaMnO$_{3}$

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dc.creatorRen, Y. H.
dc.creatorZhao, H. B.
dc.creatorL\U{fc}pke, G.
dc.creatorHu, Y. F.
dc.creatorLi, Qi
dc.creatorHong, C. S.
dc.creatorHur, N. H.
dc.date2003-10-15
dc.date.accessioned2026-07-07T02:54:13Z
dc.date.available2026-07-07T02:54:13Z
dc.descriptionThe spin and quasiparticle relaxation dynamics in La$_{0.67}$Ca$_{0.33}$MnO$_{3}$ and LaMnO$_{3}$ single crystals and thin films is investigated as a function of temperature and magnetic field by pump-probe spectroscopy. The unusually slow spin-lattice relaxation dynamics is governed by the temperature- and magnetic field- dependent pseudogap in La$_{0.67}$Ca$_{0.33}$MnO$_{3}$, and by the temperature-independent Jahn-Teller gap in LaMnO$_{3}$. Our results show that the coupled dynamics of charge, spin and lattice is strongly correlated with the distinct gap structures in these manganites.
dc.description9 pages, 4 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0310359
dc.identifierhttp://arxiv.org/abs/cond-mat/0310359
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/22453
dc.subjectStrongly Correlated Electrons
dc.titleQuasiparticle Relaxation Dynamics in Two Distinct Gap Structures: La$_{0.67}$Ca$_{0.33}$MnO$_{3}$ and LaMnO$_{3}$
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