The mid-infrared Hall effect in optimally-doped Bi_2 Sr_2 CaCu_2 O_{8+δ}

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dc.creatorSchmadel, D. C.
dc.creatorGu, G. D.
dc.creatorKontaini, Hiroshi
dc.creatorDrew, H. D.
dc.date2005-10-28
dc.date2006-01-29
dc.date.accessioned2026-07-07T06:45:40Z
dc.date.available2026-07-07T06:45:40Z
dc.descriptionHeterodyne polarometry is used to measure the frequency dependence in the mid IR from 900 to 1100 cm$^-1$ and temperature dependence from 35 to 330 K of the normal state Hall transport in single crystal, optimally doped Bi$_2$Sr$_2$CaCu$_2$O$_{8+δ}$. The results show a simple Drude behavior in the Hall conductivity $σ_{xy}$ which stands in contrast to the more complex, extended Drude behavior for the longitudinal conductivity $σ_{xx}$. The mid IR Hall scattering rate $γ_{xy}$ increases linearly with temperature and has a small, positive, projected intercept at T=0. The longitudinal scatter rate, in contrast, is much larger and exhibits very little temperature dependnece. The Hall frequency indicates a carrier mass which is 6.7 times the band mass and which decreases slighly with increasing frequency. These disparate behaviors are consistent with calculations based on the fluctuation-exchange interaction using current vertex corrections.
dc.description2 pages, 3 figures
dc.identifierhttps://arxiv.org/abs/cond-mat/0510793
dc.identifierhttp://arxiv.org/abs/cond-mat/0510793
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/103108
dc.subjectStrongly Correlated Electrons
dc.subjectSuperconductivity
dc.titleThe mid-infrared Hall effect in optimally-doped Bi_2 Sr_2 CaCu_2 O_{8+δ}
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