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제목 [서울대 안성진 학생, 민홍기 교수] 선마디 준금속에서 광학전도도 연구 (PRL 논문 게재)
출처 서울대학교   날짜 2017-10-10
We study the frequency dependent conductivity of nodal-line semimetals (NLSMs) focusing on the effects of carrier density and energy dispersion on the nodal line. We find that the low-frequency conductivity has a rich spectral structure which can be understood using scaling rules derived from the geometry of their Dupin cyclide Fermi surfaces. We identify different frequency regimes, find scaling rules for the optical conductivity in each, and demonstrate them with numerical calculations of the inter- and intraband contributions to the optical conductivity using a low energy model for a generic NLSM.

Authors: Seongjin Ahn (서울대), Eugene Mele (University of Pennsylvania), Hongki Min (서울대)
Journal: Phys. Rev. Lett. 119, 147402 (2017)
Publication date: 5 October 2017

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