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- Publisher Website: 10.1016/j.physc.2009.03.047
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Article: Optical and Raman spectroscopy studies on Fe-based superconductors
Title | Optical and Raman spectroscopy studies on Fe-based superconductors |
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Authors | |
Keywords | Infrared and Raman spectroscopy Iron pnictides Spin-density waves Superconductivity |
Issue Date | 2009 |
Citation | Physica C: Superconductivity and its Applications, 2009, v. 469, n. 9-12, p. 545-558 How to Cite? |
Abstract | A brief review of optical and Raman studies on the Fe-based superconductors is given, with special emphasis on the competing phenomenon in this system. Optical investigations on ReFeAsO (Re = rare-earth element) and AFe 2 As 2 (A = alkaline-earth metal) families provide clear evidence for the gap formation in the broken symmetry states, including the partial gaps in the spin-density wave states of parent compounds, and the pairing gaps in the superconducting states for doped compounds. Especially, the superconducting gap has an s-wave pairing lineshape in hole-doped BaFe 2 As 2 . Optical phonons at zone center detected by Raman and infrared techniques are classified for several Fe-based compounds. Related issues, such as the electron-phonon coupling and the effect of spin-density wave and superconducting transitions on phonons, are also discussed. Meanwhile, open questions including the T-dependent mid-infrared peak at 0.6-0.7 eV, electronic correlation, and the similarities/differences between high-T c cuprates and Fe-based superconductors are also briefly discussed. Important results from other experimental probes are compared with optical data to better understand the spin-density wave properties, the superconductivity, and the multi-band character in Fe-based compounds. © 2009 Elsevier B.V. All rights reserved. |
Persistent Identifier | http://hdl.handle.net/10722/254516 |
ISSN | 2023 Impact Factor: 1.3 2023 SCImago Journal Rankings: 0.339 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Hu, W. Z. | - |
dc.contributor.author | Zhang, Q. M. | - |
dc.contributor.author | Wang, N. L. | - |
dc.date.accessioned | 2018-06-19T15:40:46Z | - |
dc.date.available | 2018-06-19T15:40:46Z | - |
dc.date.issued | 2009 | - |
dc.identifier.citation | Physica C: Superconductivity and its Applications, 2009, v. 469, n. 9-12, p. 545-558 | - |
dc.identifier.issn | 0921-4534 | - |
dc.identifier.uri | http://hdl.handle.net/10722/254516 | - |
dc.description.abstract | A brief review of optical and Raman studies on the Fe-based superconductors is given, with special emphasis on the competing phenomenon in this system. Optical investigations on ReFeAsO (Re = rare-earth element) and AFe 2 As 2 (A = alkaline-earth metal) families provide clear evidence for the gap formation in the broken symmetry states, including the partial gaps in the spin-density wave states of parent compounds, and the pairing gaps in the superconducting states for doped compounds. Especially, the superconducting gap has an s-wave pairing lineshape in hole-doped BaFe 2 As 2 . Optical phonons at zone center detected by Raman and infrared techniques are classified for several Fe-based compounds. Related issues, such as the electron-phonon coupling and the effect of spin-density wave and superconducting transitions on phonons, are also discussed. Meanwhile, open questions including the T-dependent mid-infrared peak at 0.6-0.7 eV, electronic correlation, and the similarities/differences between high-T c cuprates and Fe-based superconductors are also briefly discussed. Important results from other experimental probes are compared with optical data to better understand the spin-density wave properties, the superconductivity, and the multi-band character in Fe-based compounds. © 2009 Elsevier B.V. All rights reserved. | - |
dc.language | eng | - |
dc.relation.ispartof | Physica C: Superconductivity and its Applications | - |
dc.subject | Infrared and Raman spectroscopy | - |
dc.subject | Iron pnictides | - |
dc.subject | Spin-density waves | - |
dc.subject | Superconductivity | - |
dc.title | Optical and Raman spectroscopy studies on Fe-based superconductors | - |
dc.type | Article | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1016/j.physc.2009.03.047 | - |
dc.identifier.scopus | eid_2-s2.0-65549166313 | - |
dc.identifier.volume | 469 | - |
dc.identifier.issue | 9-12 | - |
dc.identifier.spage | 545 | - |
dc.identifier.epage | 558 | - |
dc.identifier.isi | WOS:000267191500030 | - |
dc.identifier.issnl | 0921-4534 | - |