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Magnetoresistance, noise properties and the Koshino-Taylor effect in the quasi-1D oxide KRu₄O₈

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arxiv 1201.6474 v1 pith:JO2ZU43Y submitted 2012-01-31 cond-mat.mtrl-sci cond-mat.str-el

Magnetoresistance, noise properties and the Koshino-Taylor effect in the quasi-1D oxide KRu₄O₈

classification cond-mat.mtrl-sci cond-mat.str-el
keywords temperaturedimensionaleffectelectronickoshino-taylornoiseoxideproperties
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The low temperature electronic and galvanomagnetic transport properties of the low dimensional oxide KRu_4O_8 are experimentally considered. A quadratic temperature variation of the resistivity is observed to be proportional to the residual resistivity. It shows the role of inelastic electron scattering against impurities, i.e. a large Koshino-Taylor effect, rather than a consequence of strong electronic correlations. In the same temperature range, the Kohler rule is not fulfilled. The resistance noise increases also sharply, possibly due to a strong coupling of carriers with lattice fluctuations in this low dimensional compound.

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