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Violation of Kohler's rule by the magnetoresistance of a quasi-two-dimensional organic metal | | Ross H. McKenzie
; J. S. Qualls
; S. Y. Han
; J. S. Brooks
; | | Date: |
23 Oct 1997 | | Journal: | Phys. Rev. B 57, 11854 (1998). | | Subject: | Strongly Correlated Electrons; Superconductivity | cond-mat.str-el cond-mat.supr-con | | Affiliation: | University of New South Wales, Sydney, Australia), J. S. Qualls, S. Y. Han, and J. S. Brooks (Florida State University | | Abstract: | The interlayer magnetoresistance of the quasi-two-dimensional metal $alpha$-(BEDT-TTF)$_2$KHg(SCN)$_4$ is considered. In the temperature range from 0.5 to 10 K and for fields up to 10 tesla the magnetoresistance has a stronger temperature dependence than the zero-field resistance. Consequently Kohler’s rule is not obeyed for any range of temperatures or fields. This means that the magnetoresistance cannot be described in terms of semiclassical transport on a single Fermi surface with a single scattering time. Possible explanations for the violations of Kohler’s rule are considered, both within the framework of semi-classical transport theory and involving incoherent interlayer transport. The issues considered are similar to those raised by the magnetotransport of the cuprate superconductors. | | Source: | arXiv, cond-mat/9710245 | | Services: | Forum | Review | PDF | Favorites | |
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