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Comparison of the Magnetic Ordering in Sr2Yb1Ru0.9Cu0.1O6 and Ru1Sr2Gd1Cu2O8 Superconductors

Title
Comparison of the Magnetic Ordering in Sr2Yb1Ru0.9Cu0.1O6 and Ru1Sr2Gd1Cu2O8 Superconductors
Authors
Ahmad, D.Kim, G. C.Ko, Rock-KilKwon, Yong SeungKim, Y. C.
DGIST Authors
Kwon, Yong Seung
Issue Date
2014-08
Citation
Journal of Superconductivity and Novel Magnetism, 27(8), 1807-1812
Type
Article
Article Type
Article
Keywords
Antiferromagnetic OrderingsDiamagnetic SignalsFerromagnetic ComponentMagnetic TransitionsMagnetizationMagnetization DataRuthenatesRutheno-CuprateRutheno-CupratesSolid State ReactionsSuperconducting MaterialsSuperconductivityX Ray DiffractionYtterbiumZero-Field-Cooled Magnetizations
ISSN
1557-1939
Abstract
Ru1Sr2Gd1Cu2O8 and Sr2Yb1Ru0.9Cu0.1O6 were synthesized using a solid-state reaction. X-ray diffraction showed that Ru 1Sr2Gd1Cu2O8 crystallized into the tetragonal Ru-1212 structure (space group P4/mmm), whereas the Sr 2Yb1Ru0.9Cu0.1O6 had a monoclynic structure (space group P21/n). Sr2Yb 1Ru0.9Cu0.1O6 showed a possible magnetic transition (T m a g ) at 44 K with a superconducting transition temperature T c at 30 K. In contrast, Ru 1Sr2Gd1Cu2O8 showed a magnetic transition at 140 K with a T c at 25 K. The magnetization data for Sr2Yb1Ru0.9Cu0.1O 6 suggests that this sample exhibits antiferromagnetic ordering in zero-field-cooled (ZFC) magnetization, whereas it reveals a weak ferromagnetic component during field-cooled (FC) cycles. In addition, larger diamagnetic signals were observed during FC cycle compared to the ZFC. These results suggest that the valence state of the Yb ion have a significant effect on the magnetic state of the Sr2Yb1Ru0.9Cu0.1O 6 superconductor. © 2014 Springer Science+Business Media New York.
URI
http://hdl.handle.net/20.500.11750/5250
DOI
10.1007/s10948-014-2533-0
Publisher
Springer New York LLC
Related Researcher
  • Author Kwon, Yong Seung Quantum Functional Materials Laboratory
  • Research Interests High Tc Superconductors and magnetic materials; Thermoelectric Materials
Files:
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Collection:
Emerging Materials ScienceQuantum Functional Materials Laboratory1. Journal Articles


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