Origin of quadrature scaling of strange-metal magnetoresistance
In plain words
In some strange metals the resistance in a magnetic field depends only on a combined measure of temperature and field, growing linearly with field without saturating.
Precise statement
In BaFe2(As1-xPx)2 and overdoped La2-xSrxCuO4 and Tl2Ba2CuO6+d, the magnetoresistance follows $\rho(H,T) - \rho_{0} \sim \sqrt{(\alpha k_{B} T)^2 + (\gamma \mu_{B} H)^2}$ with $\gamma/\alpha$ of order one, including in orbital geometry. Derive this form and the measured ratio $\gamma/\alpha$ from a microscopic model.
What would settle it
A model calculation of $\rho(H,T)$ reproducing the scaling form, the ratio $\gamma/\alpha$ and its angle dependence in one of these materials.
Parent problems
- Special case of Microscopic origin of T-linear resistivity in strange metals · open · from revision 1 The parent was revised since revision 1: it now states another question.
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