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arXiv · 1312.6636

SmB6 Photoemission: Past and Present

Jonathan D. Denlinger·James W. Allen·Jeong-Soo Kang·Kai Sun·Byung-Il Min·Dae-Jeong Kim·Zachary Fisk
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Abstract

Recent renewed interest in the mixed valent insulator SmB6 comes from topological theory predictions and surface transport measurements of possible in-gap surface states whose existence is most directly probed by angle-resolved photoemission spectroscopy (ARPES). Early photoemission leading up to a recent flurry of ARPES studies of in-gap states is reviewed. Conflicting interpretations about the nature of the Sm 4f-5d hybridization gap and observed X-point bands between the f-states and the Fermi level are critically assessed using the important tools of photon polarization and spatial dependence which also provide additional insight into the origin of the more ambiguous {\Gamma}-point in-gap states.

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Jonathan D. Denlinger, James W. Allen, Jeong-Soo Kang, Kai Sun, Byung-Il Min, Dae-Jeong Kim, Zachary Fisk. 2013-12-23. SmB6 Photoemission: Past and Present. https://doi.org/10.7566/jpscp.3.017038

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