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arXiv · 1506.08972

Orbital-selective electronic excitations in iron arsenides revealed by simulated nonresonant inelastic x-ray scattering

Kenji Tsutsui·Eiji Kaneshita·Takami Tohyama
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Abstract

Nonresonant inelastic x-ray scattering (NIXS) is a possible tool to detect charge excitations in electron systems. In addition, multipole transitions at high-momentum-transfer region open a new possibility to determine orbital-selective electronic excitations in multi-orbital itinerant 3d electron systems. As a theoretical example, we chose the antiferromagnetic state of iron arsenides and demonstrate that the orbital-selective excitations are detectable by choosing appropriate momentum transfer in NIXS. We propose that both NIXS and resonant inelastic x-ray scattering are complementary to each other for fully understanding the nature of orbital excitations in multi-orbital itinerant electron systems.

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Kenji Tsutsui, Eiji Kaneshita, Takami Tohyama. 2015-06-30. Orbital-selective electronic excitations in iron arsenides revealed by simulated nonresonant inelastic x-ray scattering. https://doi.org/10.1103/physrevb.92.195103

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