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Collective excitations and low-temperature transport properties of bismuth

Publication date2011

We examine the influence of collective excitations on the transport properties (resistivity and magneto-optical conductivity) for semimetals, focusing on the case of bismuth. We show, using a random-phase approximation (RPA), that the properties of the system are drastically affected by the presence of an acoustic-plasmon mode, which is a consequence of the presence of two types of carriers (electrons and holes) in this system. We find a crossover temperature T∗ separating two different regimes of transport. At high temperatures where T>T∗, we show that Baber scattering explains quantitatively the dc resistivity experiments, while at low temperatures where T

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CHUDZINSKI, Piotr, GIAMARCHI, Thierry. Collective excitations and low-temperature transport properties of bismuth. In: Physical review. B, Condensed matter and materials physics, 2011, vol. 84, n° 12. doi: 10.1103/PhysRevB.84.125105
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Article (Published version)
ISSN of the journal1098-0121

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