Magnetic excitations in iron pnictides

2011/06/22 by Nimisha Raghuvanshi, Raghuvanshi, Nimisha, Sayandip Ghosh +7
Business, Management and Accounting · Materials Science · Physics and Astronomy · #Intellectual Capital and Performance Analysis #Iron-based superconductors research #cond-mat.str-el

paper · pdf · doi:10.48550/arxiv.1106.4421

11 pages, 5 figures

arxiv created 2011/06/22 · arxiv updated 2011/06/23

Abstract

Spin wave dispersion and damping are investigated in the metallic SDW state of different itinerant electron models including a small interlayer hopping. Magnetic excitations in iron pnictides are shown to be well understood in terms of physical mechanisms characteristic of metallic magnets, such as carrier-induced ferromagnetic spin couplings, intra-band particle-hole excitations, and the spin-charge coupling mechanism, which is also important in ferromagnetic manganites.

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