Temperature-driven massless Kane fermions in HgCdTe crystals

Temperature-driven massless Kane fermions in HgCdTe crystals

Kane fermions are predicted to be tunable with external parameters such as temperature. Here, Teppe et al. show a band structure evolution of bulk HgCdTe as temperature is tuned across topological phase transition, demonstrating that Kane fermions change sign in rest-mass and remain constant in velo...

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Main Authors: F. Teppe, M. Marcinkiewicz, S. S. Krishtopenko, S. Ruffenach, C. Consejo, A. M. Kadykov, W. Desrat, D. But, W. Knap, J. Ludwig, S. Moon, D. Smirnov, M. Orlita, Z. Jiang, S. V. Morozov, V.I. Gavrilenko, N. N. Mikhailov, S. A. Dvoretskii
Format: article
Language:EN
Published: Nature Portfolio 2016
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Science
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Online Access:https://doaj.org/article/b73b9f0409f84ff0a6c4ac9d84a492d6
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Summary:Kane fermions are predicted to be tunable with external parameters such as temperature. Here, Teppe et al. show a band structure evolution of bulk HgCdTe as temperature is tuned across topological phase transition, demonstrating that Kane fermions change sign in rest-mass and remain constant in velocity.

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