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Hall effect on the triangular lattice

Millis, A.
Published in Physical Review. B, Condensed Matter. 2008, vol. 78, no. 8, 085105
Abstract We investigate the high-frequency Hall effect on a two-dimensional triangular lattice with nearest-neighbor hopping and a local Hubbard interaction. The complete temperature and doping dependencies of the high-frequency Hall coefficient RH are evaluated analytically and numerically for small, intermediate, and strong interactions using various approximation schemes. We find that RH follows the semiclassical 1/qn∗ law near T=0 but exhibits a striking T-linear behavior with an interaction- and doping-dependent slope at high temperature. We compare our results with previous theories as well as Hall measurements performed in cobaltates.
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Research group Groupe Giamarchi
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LEON SUROS, Gladys Eliana et al. Hall effect on the triangular lattice. In: Physical Review. B, Condensed Matter, 2008, vol. 78, n° 8, p. 085105. doi: 10.1103/PhysRevB.78.085105 https://archive-ouverte.unige.ch/unige:23842

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Deposited on : 2012-11-07

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