Ruthenocuprates RuSr2 (Eu,Ce)2Cu2O10-y: Intrinsic magnetic multilayers (CROSBI ID 95161)
Prilog u časopisu | izvorni znanstveni rad | međunarodna recenzija
Podaci o odgovornosti
Živković, Ivica ; Y.Hirai ; B.H.Frazer ; Prester, Mladen ; Drobac, Đuro ; D.Ariosa ; H.Berger ; D.Pavuna ; G.Margaritondo ; I.Felner ; M.Onellion
engleski
Ruthenocuprates RuSr2 (Eu,Ce)2Cu2O10-y: Intrinsic magnetic multilayers
We report ac susceptibility data on RuSr2(Eu, Ce)2Cu2O10-y (Ru-1222, Ce content x = 0.5 and 1.0), RuSr2GdCu2O8 (Ru-1212), and SrRuO3. Both Ru-1222 (x = 0.5, 1.0) sample types exhibit unexpected magnetic dynamics in low magnetic fields: logarithmic time relaxation, switching behavior, and "inverted" hysteresis loops. Neither Ru-1212 nor SrRuO3 exhibit such magnetic dynamics. The results are interpreted as evidence of the complex magnetic order in Ru-1222. We propose a specific multilayer model to explain the data, and note that superconductivity in the ruthenocuprate is compatible with both the presence and absence of the magnetic dynamics.
ruthenocuprates ; ac susceptibility ; superconductivity ; magnetic ordering
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Podaci o izdanju
65 (14)
2002.
144420
8
objavljeno
1098-0121
1550-235X
10.1103/PhysRevB.65.144420