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EnglishWe report on the magnetic and superconducting properties of LaO0.5F0.5BiS2 by means of zero- and transverse-field (ZF/TF) muon-spin spectroscopy measurements (μSR). Contrary to previous results on iron-based superconductors, measurements in zero field demonstrate the absence of magnetically ordered phases. TF-μSR data give access to the superfluid density, which shows a marked two-dimensional character with a dominant s-wave temperature behavior. The field dependence of the magnetic penetration depth confirms this finding and further suggests the presence of an anisotropic superconducting gap.
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| Titolo: | s-wave pairing in the optimally doped LaO_{0.5}F_{0.5}BiS_{2} superconductor |
| Autori: | |
| Data di pubblicazione: | 2013 |
| Rivista: | |
| Abstract: | We report on the magnetic and superconducting properties of LaO0.5F0.5BiS2 by means of zero- and transverse-field (ZF/TF) muon-spin spectroscopy measurements (μSR). Contrary to previous results on iron-based superconductors, measurements in zero field demonstrate the absence of magnetically ordered phases. TF-μSR data give access to the superfluid density, which shows a marked two-dimensional character with a dominant s-wave temperature behavior. The field dependence of the magnetic penetration depth confirms this finding and further suggests the presence of an anisotropic superconducting gap. |
| Handle: | http://hdl.handle.net/11584/90365 |
| Tipologia: | 1.1 Articolo in rivista |
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