On the temperature scaling behaviour of the linear magnetoresistance observed in high-temperature superconductors

Abstract

An analytical model invoking variations in the charge-carrier density is used to generate magnetoresistance curves that are almost indistinguishable from those produced by sophisticated numerical models. This demonstrates that, though disorder is pivotal in causing linear magnetoresistance, the form of the magnetoresistance thus generated is insensitive to details of the disorder. Taken in conjunction with the temperature ($T$) dependence of the zero-field resistivity, realistic levels of disorder are shown to be sufficient to explain the linear magnetoresistance and field-$T$ resistance scaling observed in high-temperature pnictide and cuprate superconductors. Hence, though the $T$-linear zero-field resistance is a definite signature of the "strange metal" state of high-temperature superconductors, their linear magnetoresistance and its scaling is unlikely to be so.

References in corpus (3)

• Magnetotransport in a model of a disordered strange metal
• Backreacted DBI Magnetotransport with Momentum Dissipation
• Anisotropy in the Magnetoresistance Scaling of BaFe${}_2$(As${}_{1-x}$P${}_x$)${}_2$

Cited by in corpus (7)

• Incoherent transport across the strange metal regime of highly overdoped cuprates
• Observation of cyclotron resonance and measurement of the hole mass in optimally-doped La${}_{2-x}$Sr${}_x$CuO${}_4$
• Evolution of the cyclotron mass with doping in La${}_{2-x}$Sr${}_x$CuO${}_4$
• $B^2$ to $B$-linear magnetoresistance due to impeded orbital motion
• Linear magnetoresistance with a universal energy scale in a strong-coupling superconductor
• Longitudinal Magnetoresistance in YBa${}_2$Cu${}_3$O${}_7$ at High Magnetic Fields of up to 100 T
• $H$-linear magnetoresistance in NbSe${}_2$ due to impeded cyclotron motion