TY - JOUR
T1 - Ruthenocuprates RuSr2(Eu,Ce)2Cu2O10-y
T2 - Intrinsic magnetic multilayers
AU - Živković, I.
AU - Hirai, Y.
AU - Frazer, B. H.
AU - Prester, M.
AU - Drobac, D.
AU - Ariosa, D.
AU - Berger, H.
AU - Pavuna, D.
AU - Margaritondo, G.
AU - Felner, I.
AU - Onellion, M.
PY - 2002/4/1
Y1 - 2002/4/1
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=0000499673&partnerID=8YFLogxK
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AN - SCOPUS:0000499673
SN - 0163-1829
VL - 65
SP - 1444201
EP - 1444208
JO - Physical Review B - Condensed Matter and Materials Physics
JF - Physical Review B - Condensed Matter and Materials Physics
IS - 14
M1 - 144420
ER -