The ruthenocuprates: natural superconductor–ferromagnet multilayers

Timo Nachtrab; Christian Bernhard; Chengtian Lin; Dieter Koelle; Reinhold Kleiner

doi:10.1016/j.crhy.2005.11.010

The ruthenocuprates: natural superconductor–ferromagnet multilayers
[Les ruthenocuprates : des multicouches supraconducteurs–ferromagnétiques naturelles]

Timo Nachtrab ¹ ; Christian Bernhard ² ; Chengtian Lin ² ; Dieter Koelle ¹ ; Reinhold Kleiner ¹

¹ Physikalisches Institut-Experimentalphysik II, Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
² Max-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, 70569 Stuttgart, Germany

Comptes Rendus. Physique, Superconductivity and magnetism, Volume 7 (2006) no. 1, pp. 68-85.

Résumé
Abstract

Découverts récemment, les ruthenocuprates ont suscité un intérêt énorme à cause de la coexistence d'un ordre supraconducteur et ferromagnétique. Dans ces matériaux, la phase magnétique apparaît autour de 125–145 K et la phase supraconductrice entre 15 et 50 K. Les couches de CuO₂ sont supraconductrices et ce sont les couches interstitielles de RuO₂ qui sont ordonnées magnétiquement. Dans cet article nous résumons quelques-unes des propriétés cristallographiques, magnétiques et supraductrices des ruthenocuprates déduites des études sur des échantillons polycristallins ainsi que sur des monocristaux.

The recently discovered ruthenocuprates have attracted great interest because of the microscopic coexistence of superconducting and ferromagnetic order. Typically, these materials become magnetically ordered at temperatures around 125–145 K and superconductivity sets in between 15 and 50 K. While superconductivity arises in the CuO₂ layers, the RuO₂ layers in between order magnetically. In this article we summarize some of the crystallographic, magnetic and superconducting properties of the ruthenocuprates, as obtained from investigations on polycrystalline samples as well as single crystals.

Publié le : 2006-01-01

DOI : 10.1016/j.crhy.2005.11.010

Keywords: Superconductivity, Magnetism, Ruthenocuprate, Multilayer
Mots-clés : Supraconductivité, Magnétisme, Ruthenocuprate, Multicouches

Affiliations des auteurs :

Timo Nachtrab ¹ ; Christian Bernhard ² ; Chengtian Lin ² ; Dieter Koelle ¹ ; Reinhold Kleiner ¹

¹ Physikalisches Institut-Experimentalphysik II, Universität Tübingen, Auf der Morgenstelle 14, 72076 Tübingen, Germany
² Max-Planck-Institut für Festkörperforschung, Heisenbergstr. 1, 70569 Stuttgart, Germany

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     pages = {68--85},
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Timo Nachtrab; Christian Bernhard; Chengtian Lin; Dieter Koelle; Reinhold Kleiner. The ruthenocuprates: natural superconductor–ferromagnet multilayers. Comptes Rendus. Physique, Superconductivity and magnetism, Volume 7 (2006) no. 1, pp. 68-85. doi : 10.1016/j.crhy.2005.11.010. https://comptes-rendus.academie-sciences.fr/physique/articles/10.1016/j.crhy.2005.11.010/

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X Montiel; A I Buzdin On the theory of the proximity effect in atomic scale superconducting/normal metal multilayered structures, Superconductor Science and Technology, Volume 26 (2013) no. 8, p. 085011 | DOI:10.1088/0953-2048/26/8/085011
Rashmi Nigam; Shane J. Kennedy; Alexey V. Pan; Shixue Dou Magnetic phase diagram and correlation between metamagnetism and superconductivity in Ru0.9Sr2YCu2.1O7.9, The European Physical Journal B, Volume 86 (2013) no. 6 | DOI:10.1140/epjb/e2013-40019-2
M. Abatal; V. García-Vázquez; E. Chavira; G. González; A. Tejeda The Interplay Among Electrical, Magnetic, and Structural Properties in the Non-superconducting Ru(Sr2−x Ba x )GdCu2O8±z System, Journal of Low Temperature Physics, Volume 168 (2012) no. 1-2, p. 69 | DOI:10.1007/s10909-012-0610-y
L.T. Corredor; D.A. Landínez Téllez; J.L. Pimentel Jr; P. Pureur; J. Roa-Rojas Magnetic, Structural and Morphological Characterization of Sr₂GdRuO₆ Double Perovskite, Journal of Modern Physics, Volume 02 (2011) no. 03, p. 154 | DOI:10.4236/jmp.2011.23023
X. Montiel; A. I. Buzdin Field-induced superconducting phase in superconductor–normal metal and superconductor-superconductor bilayers, Physical Review B, Volume 84 (2011) no. 5 | DOI:10.1103/physrevb.84.054518
P.W. Klamut; T. Plackowski The Superconducting and Magnetic States in RuSr2GdCu2O8, Based on the Magnetic, Transport and Magneto-Caloric Characteristics, Acta Physica Polonica A, Volume 118 (2010) no. 2, p. 254 | DOI:10.12693/aphyspola.118.254
Piotr W. Klamut; Tomasz Plackowski; Marcin Matusiak The Characteristics of the Superconducting and Magnetic Phases in the Polycrystalline Samples of Ruthenocuprates of Nominal Compositions RuSr2GdCu2O8, Ru0.98Sr2GdCu2O8 and Ru0.5Sr2GdCu2.5O8−δ, Journal of Low Temperature Physics, Volume 159 (2010) no. 5-6, p. 576 | DOI:10.1007/s10909-010-0167-6
X. Montiel; D. Gusakova; M. Daumens; A. Buzdin Proximity effect in atomic-scaled hybrid superconductor/ferromagnet structures: Crucial role of electron spectra, EPL (Europhysics Letters), Volume 86 (2009) no. 6, p. 67002 | DOI:10.1209/0295-5075/86/67002
L. T. CORREDOR; D. A. LANDÍNEZ TÉLLEZ; M. C. REYES O.; J. ROA-ROJAS; A. R. JURELO; P. PUREUR SYNTHESIS, STRUCTURAL CHARACTERIZATION AND MAGNETIC BEHAVIOR OF RuSr2GdCu2O8/La0.67Sr0.33MnO3 COMPOSITES, Modern Physics Letters B, Volume 23 (2009) no. 02, p. 137 | DOI:10.1142/s021798490901790x
S. Garcia; S. Andrade; R. F. Jardim; F. C. Fonseca; M. S. Torikachvili; A. H. Lacerda Logarithmic contribution to the electrical resistivity in(Ru1−xIrx)Sr2GdCu2O8compounds, Physical Review B, Volume 80 (2009) no. 13 | DOI:10.1103/physrevb.80.134520
B. Bohnenbuck; I. Zegkinoglou; J. Strempfer; C. S. Nelson; H.-H. Wu; C. Schüßler-Langeheine; M. Reehuis; E. Schierle; Ph. Leininger; T. Herrmannsdörfer; J. C. Lang; G. Srajer; C. T. Lin; B. Keimer Magnetic Structure ofRuSr2GdCu2O8Determined by Resonant X-Ray Diffraction, Physical Review Letters, Volume 102 (2009) no. 3 | DOI:10.1103/physrevlett.102.037205
Piotr W Klamut; Tomasz Plackowski The magnetic state of 1212-type ruthenocuprate in magnetocaloric and magnetoresistivity measurements of polycrystalline samples of RuSr2Gd1−xCexCu2O8and Ru1−xSr2GdCu2O8, Superconductor Science and Technology, Volume 22 (2009) no. 2, p. 025021 | DOI:10.1088/0953-2048/22/2/025021
M. Požek; I. Kupčić; A. Dulčić; A. Hamzić; D. Paar; M. Basletić; E. Tafra; G. V. M. Williams Microwave and magnetotransport properties ofRuSr2RCu2O8(R=Eu,Gd)doped with Sn, Physical Review B, Volume 77 (2008) no. 21 | DOI:10.1103/physrevb.77.214514
M. L. Kulić; A. I. Buzdin Coexistence of Singlet Superconductivity and Magnetic Order in Bulk Magnetic Superconductors and SF Heterostructures, Superconductivity (2008), p. 163 | DOI:10.1007/978-3-540-73253-2_4
Piotr W Klamut Superconductivity and magnetism in the ruthenocuprates, Superconductor Science and Technology, Volume 21 (2008) no. 9, p. 093001 | DOI:10.1088/0953-2048/21/9/093001
A. Buzdin; J. Flouquet Magnetic Superconductors, Handbook of Magnetism and Advanced Magnetic Materials (2007) | DOI:10.1002/9780470022184.hmm127
L. Ghivelder; S. Garcia Determination of Hc1 in the magnetic superconductor Ru-1222, Physica C: Superconductivity and its Applications, Volume 460-462 (2007), p. 510 | DOI:10.1016/j.physc.2007.03.085
A. Paolone; C. Castellano; O. Palumbo; F. Cordero; R. Cantelli; A. Vecchione; M. Gombos; S. Pace; M. Ferretti An EXAFS study of RuSr2GdCu2O8: Evidence of magnetoelastic coupling, Physica C: Superconductivity and its Applications, Volume 467 (2007) no. 1-2, p. 167 | DOI:10.1016/j.physc.2007.10.009
J. W. Lynn; Y. Chen; Q. Huang; S. K. Goh; G. V. M. Williams Search for magnetic order in superconductingRuSr2Eu1.2Ce0.8Cu2O10, Physical Review B, Volume 76 (2007) no. 1 | DOI:10.1103/physrevb.76.014519
P. P. Deen; F. Yokaichiya; A. de Santis; F. Bobba; A. R. Wildes; A. M. Cucolo Ferromagnetic clusters and superconducting order inLa0.7Ca0.3MnO3∕YBa2Cu3O7−δheterostructures, Physical Review B, Volume 74 (2006) no. 22 | DOI:10.1103/physrevb.74.224414

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