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Valley nematics

Unfinished bismuth

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Anisotropies in conductivity measurements of bismuth point to the spontaneous breaking of intrinsic degeneracies in its electronic structure — and suggest there may be still more to learn from this well-studied material.

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Figure 1: ABC valleys illustrate one way in which collective effects could induce symmetry breaking.

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Authors and Affiliations

  1. Siddharth A. Parameswaran is in the Department of Physics at the University of California, Berkeley, California 94720, USA,

    Siddharth A. Parameswaran

  2. USA and the Department of Engineering Science and Physics at the College of Staten Island, Vadim Oganesyan is in the Graduate Center, City University of New York, New York, New York 10016, City University of New York, Staten Island, New York 10314, USA,

    Vadim Oganesyan

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  1. Siddharth A. Parameswaran
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  2. Vadim Oganesyan
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Correspondence to Vadim Oganesyan.

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Parameswaran, S., Oganesyan, V. Unfinished bismuth. Nature Phys 8, 7–8 (2012). https://doi.org/10.1038/nphys2189

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