High-field electron spin resonance spectroscopy study of GdFeAsO1−xFx superconductors
We report a detailed investigation of GdO1−xFxFeAs (x=0, 0.07, and 0.14) samples by means of high-field and high-frequency electron spin resonance (HF-ESR) together with measurements of thermodynamic and transport properties. The parent GdOFeAs compound exhibits Fe long-range magnetic order below 12...
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| Hauptverfasser: | , , , , , , , , , , , , , , , , , , |
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| Dokumenttyp: | Article (Journal) |
| Sprache: | Englisch |
| Veröffentlicht: |
22 March 2011
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| In: |
Physical review. B, Condensed matter and materials physics
Year: 2011, Jahrgang: 83, Heft: 9, Pages: 1-10 |
| ISSN: | 1550-235X |
| DOI: | 10.1103/PhysRevB.83.094526 |
| Online-Zugang: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1103/PhysRevB.83.094526 Verlag, lizenzpflichtig, Volltext: https://link.aps.org/doi/10.1103/PhysRevB.83.094526 
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| Verfasserangaben: | A. Alfonsov, F. Murányi, V. Kataev, G. Lang, N. Leps, L. Wang, R. Klingeler, A. Kondrat, C. Hess, S. Wurmehl, A. Köhler, G. Behr, S. Hampel, M. Deutschmann, S. Katrych, N.D. Zhigadlo, Z. Bukowski, J. Karpinski, and B. Büchner |
MARC
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| 100 | 1 | |a Alfonsov, Alexey |d 1984- |e VerfasserIn |0 (DE-588)1017102899 |0 (DE-627)672420732 |0 (DE-576)353134902 |4 aut | |
| 245 | 1 | 0 | |a High-field electron spin resonance spectroscopy study of GdFeAsO1−xFx superconductors |c A. Alfonsov, F. Murányi, V. Kataev, G. Lang, N. Leps, L. Wang, R. Klingeler, A. Kondrat, C. Hess, S. Wurmehl, A. Köhler, G. Behr, S. Hampel, M. Deutschmann, S. Katrych, N.D. Zhigadlo, Z. Bukowski, J. Karpinski, and B. Büchner |
| 246 | 3 | 3 | |a High-field electron spin resonance spectroscopy study of GdFeAsO 1 − x F x superconductors |
| 264 | 1 | |c 22 March 2011 | |
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| 520 | |a We report a detailed investigation of GdO1−xFxFeAs (x=0, 0.07, and 0.14) samples by means of high-field and high-frequency electron spin resonance (HF-ESR) together with measurements of thermodynamic and transport properties. The parent GdOFeAs compound exhibits Fe long-range magnetic order below 128K, whereas both doped samples do not show such order and are superconducting with Tc=20 K (x=0.07) and Tc=45 K (x=0.14). The Gd3+ HF-ESR reveals an appreciable exchange coupling between Gd and Fe moments, through which the static magnetic order is clearly seen in the parent compound. Owing to this coupling, HF-ESR can probe sensitively the evolution of the magnetism in the FeAs planes upon F doping. It is found that in both superconducting samples, where the Fe long-range order is absent, there are short-range, static on the ESR time scale magnetic correlations between Fe spins. Their occurrence on a large doping scale may be indicative of the ground states’ coexistence. | ||
| 700 | 1 | |a Murányi, F. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Kataev, V. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Lang, G. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Leps, N. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Wang, L. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Klingeler, Rüdiger |d 1969- |e VerfasserIn |0 (DE-588)128948736 |0 (DE-627)38613720X |0 (DE-576)187850720 |4 aut | |
| 700 | 1 | |a Kondrat, A. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Hess, C. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Wurmehl, S. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Köhler, A. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Behr, G. |e VerfasserIn |4 aut | |
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| 700 | 1 | |a Deutschmann, M. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Katrych, S. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Zhigadlo, N. D. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Bukowski, Z. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Karpinski, J. |e VerfasserIn |4 aut | |
| 700 | 1 | |a Büchner, B. |e VerfasserIn |4 aut | |
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