Spin-lattice coupling in iron-pnictide superconductors
The magnetic moment in the parent phase of the iron-pnictide superconductors varies with composition even when the nominal charge of iron is unchanged. We propose the spin-lattice coupling due to the magneto-volume effect as the primary origin of this effect, and formulate a Landau theory to describ...
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| Autori principali: | , , , , , |
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| Natura: | Article (Journal) |
| Lingua: | inglese |
| Pubblicazione: |
2010
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| In: |
Physica. C, Superconductivity and its applications
Year: 2010, Volume: 470, Pages: S294-S295 |
| ISSN: | 1873-2143 |
| DOI: | 10.1016/j.physc.2009.11.167 |
| Accesso online: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1016/j.physc.2009.11.167 Verlag, lizenzpflichtig, Volltext: https://www.sciencedirect.com/science/article/pii/S0921453409008843 
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| Note sull'autore: | T. Egami, B.V. Fine, D.J. Singh, D. Parshall, C. de la Cruz, P. Dai |
| Riassunto: | The magnetic moment in the parent phase of the iron-pnictide superconductors varies with composition even when the nominal charge of iron is unchanged. We propose the spin-lattice coupling due to the magneto-volume effect as the primary origin of this effect, and formulate a Landau theory to describe the dependence of the moment to the Fe-As layer separation. We then compare the superconductive critical temperature of doped iron pnictides to the local moment predicted by the theory, and suggest that the spin-phonon coupling may play a role in the superconductivity of this compound. |
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| Descrizione del documento: | Available online: 3 December 2009 Gesehen am 02.03.2023 |
| Descrizione fisica: | Online Resource |
| ISSN: | 1873-2143 |
| DOI: | 10.1016/j.physc.2009.11.167 |