Theoretical Study of Upper Critical Magnetic Field (HC2) in Multiband Iron Based Superconductors
This research work focuses on the theoretical investigation of the upper critical magnetic field, HC2; Ginzburg-Landau coherence length, ξGL(T); and Ginzburg-Landau penetration depth, λGL(T), for the two-band iron based superconductors BaFe2(As1-xPx)2, NdO1-xFxFeAs, and LiFeAs. By employing the phen...
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| Format: | Article |
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Wiley
2016-01-01
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| Series: | Advances in Condensed Matter Physics |
| Online Access: | http://dx.doi.org/10.1155/2016/5470429 |
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| author | Tsadik Kidanemariam Gebregziabher Kahsay |
| author_facet | Tsadik Kidanemariam Gebregziabher Kahsay |
| author_sort | Tsadik Kidanemariam |
| collection | DOAJ |
| description | This research work focuses on the theoretical investigation of the upper critical magnetic field, HC2; Ginzburg-Landau coherence length, ξGL(T); and Ginzburg-Landau penetration depth, λGL(T), for the two-band iron based superconductors BaFe2(As1-xPx)2, NdO1-xFxFeAs, and LiFeAs. By employing the phenomenological Ginzburg-Landau (GL) equation for the two-band superconductors BaFe2(As1-xPx)2, NdO1-xFxFeAs, and LiFeAs, we obtained expressions for the upper critical magnetic field, HC2; GL coherence length, ξGL; and GL penetration depth, λGL, as a function of temperature and the angular dependency of upper critical magnetic field. By using the experimental values in the obtained expressions, phase diagrams of the upper critical magnetic field parallel, HC2∥c, and perpendicular, HC2⊥c, to the symmetry axis (c-direction) versus temperature are plotted. We also plotted the phase diagrams of the upper critical magnetic field, HC2 versus the angle θ. Similarly, the phase diagrams of the GL coherence length, ξGL, and GL penetration depth, λGL, parallel and perpendicular to the symmetry axis versus temperature are drawn for the superconductors mentioned above. Our findings are in agreement with experimental observations. |
| format | Article |
| id | doaj-art-c0ca44c991d74a7fba06eb9b646ee697 |
| institution | Kabale University |
| issn | 1687-8108 1687-8124 |
| language | English |
| publishDate | 2016-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Condensed Matter Physics |
| spelling | doaj-art-c0ca44c991d74a7fba06eb9b646ee6972025-02-03T01:02:03ZengWileyAdvances in Condensed Matter Physics1687-81081687-81242016-01-01201610.1155/2016/54704295470429Theoretical Study of Upper Critical Magnetic Field (HC2) in Multiband Iron Based SuperconductorsTsadik Kidanemariam0Gebregziabher Kahsay1Department of Physics, Adigrat University, P.O. Box 50, Adigrat, EthiopiaDepartment of Physics, College of Science, Bahir Dar University, P.O Box 79, Bahir Dar, EthiopiaThis research work focuses on the theoretical investigation of the upper critical magnetic field, HC2; Ginzburg-Landau coherence length, ξGL(T); and Ginzburg-Landau penetration depth, λGL(T), for the two-band iron based superconductors BaFe2(As1-xPx)2, NdO1-xFxFeAs, and LiFeAs. By employing the phenomenological Ginzburg-Landau (GL) equation for the two-band superconductors BaFe2(As1-xPx)2, NdO1-xFxFeAs, and LiFeAs, we obtained expressions for the upper critical magnetic field, HC2; GL coherence length, ξGL; and GL penetration depth, λGL, as a function of temperature and the angular dependency of upper critical magnetic field. By using the experimental values in the obtained expressions, phase diagrams of the upper critical magnetic field parallel, HC2∥c, and perpendicular, HC2⊥c, to the symmetry axis (c-direction) versus temperature are plotted. We also plotted the phase diagrams of the upper critical magnetic field, HC2 versus the angle θ. Similarly, the phase diagrams of the GL coherence length, ξGL, and GL penetration depth, λGL, parallel and perpendicular to the symmetry axis versus temperature are drawn for the superconductors mentioned above. Our findings are in agreement with experimental observations.http://dx.doi.org/10.1155/2016/5470429 |
| spellingShingle | Tsadik Kidanemariam Gebregziabher Kahsay Theoretical Study of Upper Critical Magnetic Field (HC2) in Multiband Iron Based Superconductors Advances in Condensed Matter Physics |
| title | Theoretical Study of Upper Critical Magnetic Field (HC2) in Multiband Iron Based Superconductors |
| title_full | Theoretical Study of Upper Critical Magnetic Field (HC2) in Multiband Iron Based Superconductors |
| title_fullStr | Theoretical Study of Upper Critical Magnetic Field (HC2) in Multiband Iron Based Superconductors |
| title_full_unstemmed | Theoretical Study of Upper Critical Magnetic Field (HC2) in Multiband Iron Based Superconductors |
| title_short | Theoretical Study of Upper Critical Magnetic Field (HC2) in Multiband Iron Based Superconductors |
| title_sort | theoretical study of upper critical magnetic field hc2 in multiband iron based superconductors |
| url | http://dx.doi.org/10.1155/2016/5470429 |
| work_keys_str_mv | AT tsadikkidanemariam theoreticalstudyofuppercriticalmagneticfieldhc2inmultibandironbasedsuperconductors AT gebregziabherkahsay theoreticalstudyofuppercriticalmagneticfieldhc2inmultibandironbasedsuperconductors |