Ruthenocuprates RuSr2(Eu,Ce)2Cu2O10-y: Intrinsic magnetic multilayers

I. Živković; Y. Hirai; B. H. Frazer; M. Prester; D. Drobac; D. Ariosa; H. Berger; D. Pavuna; G. Margaritondo; I. Felner; M. Onellion

Ruthenocuprates RuSr₂(Eu,Ce)₂Cu₂O_10-y: Intrinsic magnetic multilayers

I. Živković
, Y. Hirai
, B. H. Frazer
, M. Prester^*
, D. Drobac
, D. Ariosa
, H. Berger
, D. Pavuna
, G. Margaritondo
, I. Felner
, M. Onellion

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

59 Scopus citations

Abstract

We report ac susceptibility data on RuSr₂(Eu,Ce)₂Cu₂O_10-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.

Original language	English
Article number	144420
Pages (from-to)	1444201-1444208
Number of pages	8
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	65
Issue number	14
State	Published - 1 Apr 2002
Externally published	Yes

Cite this

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title = "Ruthenocuprates RuSr2(Eu,Ce)2Cu2O10-y: Intrinsic magnetic multilayers",

abstract = "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.",

author = "I. {\v Z}ivkovi{\'c} and Y. Hirai and Frazer, \{B. H.\} and M. Prester and D. Drobac and D. Ariosa and H. Berger and D. Pavuna and G. Margaritondo and I. Felner and M. Onellion",

year = "2002",

month = apr,

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language = "אנגלית",

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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.

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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 -

Ruthenocuprates RuSr₂(Eu,Ce)₂Cu₂O_10-y: Intrinsic magnetic multilayers

Abstract

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