http://repository.iitr.ac.in/handle/123456789/13554| Title: | Coexistence and competition of magnetism and superconductivity on the nanometer scale in underdoped BaFe1.89Co0.11As2 |
| Authors: | Marsik P. Kim K.W. Dubroka A. Rössle M. Malik, Vivek K. Schulz L. Wang C.N. Niedermayer Ch. Drew A.J. Willis M. Wolf T. Bernhard C. |
| Published in: | Physical Review Letters |
| Abstract: | We report muon spin rotation (μSR) and infrared spectroscopy experiments on underdoped BaFe1.89Co0.11As2 which show that bulk magnetism and superconductivity (SC) coexist and compete on the nanometer length scale. Our combined data reveal a bulk magnetic order, likely due to an incommensurate spin density wave (SDW), which develops below Tmag≈32K and becomes reduced in magnitude (but not in volume) below Tc=21.7K. A slowly fluctuating precursor of the SDW seems to develop already below the structural transition at Ts≈50K. The bulk nature of SC is established by the μSR data which show a bulk SC vortex lattice and the IR data which reveal that the majority of low-energy states is gapped and participates in the condensate at T≈Tc. © 2010 The American Physical Society. |
| Citation: | Physical Review Letters (2010), 105(5): - |
| URI: | https://doi.org/10.1103/PhysRevLett.105.057001 http://repository.iitr.ac.in/handle/123456789/13554 |
| Issue Date: | 2010 |
| ISSN: | 319007 |
| Author Scopus IDs: | 24341535600 57212270803 57205149218 25634630900 24758795000 18038696500 45861573700 7003937806 8667757400 56106201300 7201702157 16030481900 |
| Author Affiliations: | Marsik, P., University of Fribourg, Department of Physics, Fribourg Center for Nanomaterials, Chemin du Musée 3, CH-1700 Fribourg, Switzerland Kim, K.W., University of Fribourg, Department of Physics, Fribourg Center for Nanomaterials, Chemin du Musée 3, CH-1700 Fribourg, Switzerland Dubroka, A., University of Fribourg, Department of Physics, Fribourg Center for Nanomaterials, Chemin du Musée 3, CH-1700 Fribourg, Switzerland Rössle, M., University of Fribourg, Department of Physics, Fribourg Center for Nanomaterials, Chemin du Musée 3, CH-1700 Fribourg, Switzerland Malik, V.K., University of Fribourg, Department of Physics, Fribourg Center for Nanomaterials, Chemin du Musée 3, CH-1700 Fribourg, Switzerland Schulz, L., University of Fribourg, Department of Physics, Fribourg Center for Nanomaterials, Chemin du Musée 3, CH-1700 Fribourg, Switzerland Wang, C.N., University of Fribourg, Department of Physics, Fribourg Center for Nanomaterials, Chemin du Musée 3, CH-1700 Fribourg, Switzerland Niedermayer, Ch., Laboratorium for Neutron Scattering, Paul Scherrer Institut, ETH Zürich, CH-5232 Villigen, Switzerland Drew, A.J., University of Fribourg, Department of Physics, Fribourg Center for Nanomaterials, Chemin du Musée 3, CH-1700 Fribourg, Switzerland, Queen Mary University of London, Mile End Road, London, E1 4NS, United Kingdom Willis, M., Queen Mary University of London, Mile End Road, London, E1 4NS, United Kingdom Wolf, T., Karlsruher Institut für Technologie, Institut für Festkörperphysik, D-76021 Karlsruhe, Germany Bernhard, C., University of Fribourg, Department of Physics, Fribourg Center for Nanomaterials, Chemin du Musée 3, CH-1700 Fribourg, Switzerland |
| Corresponding Author: | Marsik, P.; University of Fribourg, Department of Physics, Fribourg Center for Nanomaterials, Chemin du Musée 3, CH-1700 Fribourg, Switzerland |
| Appears in Collections: | Journal Publications [PH] |
Items in Repository are protected by copyright, with all rights reserved, unless otherwise indicated.