Enhanced coercive field in the SC state of RuGd2-xCexSr2Cu2O10-δ and RuSr2GdCu2O8-δ

Israel Felner; Omer Ashkenazy

doi:10.1016/j.physc.2007.03.173

Enhanced coercive field in the SC state of RuGd_2-xCe_xSr₂Cu₂O_10-δ and RuSr₂GdCu₂O_8-δ

Israel Felner^*
, Omer Ashkenazy

^*Corresponding author for this work

Racah Institute of Physics

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

2 Scopus citations

Abstract

RuGd_2-xCe_xSr₂Cu₂O_10-δ (Ru-1222) and RuSr₂GdCu₂O_8-δ (Ru-1212) are systems in which bulk superconductivity (SC) in the CuO₂ planes (below T_C = 32-50 K) and weak-ferromagnetism in the Ru sublattice, coexist. SC can be totally suppressed by a small variation of the oxygen concentration, or by appropriate doping. Magnetic studies indicate that in both systems, the SC samples have lower magnetic transitions but higher coercive fields than the corresponding non-SC materials. This phenomenon can be explained by assuming the existence of the spontaneous vortex phase in the SC regions.

Original language	English
Pages (from-to)	506-507
Number of pages	2
Journal	Physica C: Superconductivity and its Applications
Volume	460-462 I
Issue number	SPEC. ISS.
DOIs	https://doi.org/10.1016/j.physc.2007.03.173
State	Published - 1 Sep 2007

Keywords

Coercive field
Magneto-superconducting
Spontaneous vortex phase

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10.1016/j.physc.2007.03.173

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title = "Enhanced coercive field in the SC state of RuGd2-xCexSr2Cu2O10-δ and RuSr2GdCu2O8-δ",

abstract = "RuGd2-xCexSr2Cu2O10-δ (Ru-1222) and RuSr2GdCu2O8-δ (Ru-1212) are systems in which bulk superconductivity (SC) in the CuO2 planes (below TC = 32-50 K) and weak-ferromagnetism in the Ru sublattice, coexist. SC can be totally suppressed by a small variation of the oxygen concentration, or by appropriate doping. Magnetic studies indicate that in both systems, the SC samples have lower magnetic transitions but higher coercive fields than the corresponding non-SC materials. This phenomenon can be explained by assuming the existence of the spontaneous vortex phase in the SC regions.",

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AU - Ashkenazy, Omer

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Y1 - 2007/9/1

N2 - RuGd2-xCexSr2Cu2O10-δ (Ru-1222) and RuSr2GdCu2O8-δ (Ru-1212) are systems in which bulk superconductivity (SC) in the CuO2 planes (below TC = 32-50 K) and weak-ferromagnetism in the Ru sublattice, coexist. SC can be totally suppressed by a small variation of the oxygen concentration, or by appropriate doping. Magnetic studies indicate that in both systems, the SC samples have lower magnetic transitions but higher coercive fields than the corresponding non-SC materials. This phenomenon can be explained by assuming the existence of the spontaneous vortex phase in the SC regions.

AB - RuGd2-xCexSr2Cu2O10-δ (Ru-1222) and RuSr2GdCu2O8-δ (Ru-1212) are systems in which bulk superconductivity (SC) in the CuO2 planes (below TC = 32-50 K) and weak-ferromagnetism in the Ru sublattice, coexist. SC can be totally suppressed by a small variation of the oxygen concentration, or by appropriate doping. Magnetic studies indicate that in both systems, the SC samples have lower magnetic transitions but higher coercive fields than the corresponding non-SC materials. This phenomenon can be explained by assuming the existence of the spontaneous vortex phase in the SC regions.

KW - Coercive field

KW - Magneto-superconducting

KW - Spontaneous vortex phase

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JO - Physica C: Superconductivity and its Applications

JF - Physica C: Superconductivity and its Applications

IS - SPEC. ISS.

ER -

Enhanced coercive field in the SC state of RuGd_2-xCe_xSr₂Cu₂O_10-δ and RuSr₂GdCu₂O_8-δ

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