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Type: Artigo de periódico
Title: Microwave Absorption Study In The Ferromagnetic Superconductor Gd1.4ce0.6rusr2cu2o10-δ
Author: Moreno N.O.
Pagliuso P.G.
Campoy J.C.P.
Granado E.
Rettori C.
Cheong S.-W.
Oseroff S.B.
Abstract: We have performed microwave absorption (MWA) and ferromagnetic resonance measurements (FMR) in Gd1.4Ce0.6RuSr2Cu2O10-δ polycrystalline samples between 300 and 8 K. Below the magnetic ordering temperature (Tm, ≈ 89 K) a MWA is observed due to the appearance of weak ferromagnetism (WFMWA). The intensity of the WFMWA decreases as T approaches the superconducting (SC) state at Tc ≈ 45 K. For T ≤ Tc, a new and much stronger MWA (SCMWA) is found. This SCMWA may be associated to Josephson intergrain and to viscose dynamic dissipation of intragrain Abrikosov vortex in the SC state.
Rights: fechado
Identifier DOI: 
Date Issue: 2000
Appears in Collections:Unicamp - Artigos e Outros Documentos

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