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Dokumenttyp:
Zeitschriftenaufsatz
Autor(en):
Knolle, J.; Eremin, I.; Chubukov, A. V.; Moessner, R.
Titel:
Theory of itinerant magnetic excitations in the spin-density-wave phase of iron-based superconductors
Abstract:
We argue that salient experimental features of the magnetic excitations in the spin-density-wave phase of iron-based superconductors can be understood within an itinerant model. We identify a minimal model and use a multiband random-phase approximation treatment of the dynamical spin susceptibility. Weakly damped spin waves are found near the ordering momentum and it is shown how they dissolve into the particle-hole continuum. We show that ellipticity of the electron bands accounts for the aniso...     »
Zeitschriftentitel:
Physical Review B 2010-04
Jahr:
2010
Band / Volume:
81
Heft / Issue:
14
Volltext / DOI:
doi:10.1103/physrevb.81.140506
Verlag / Institution:
American Physical Society (APS)
E-ISSN:
1098-01211550-235X
Publikationsdatum:
21.04.2010
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