Transport behavior characterized by a low-temperature electrical resistivity that displays a power-law behavior ρ(T→0)∝Ts with an exponent s<2, is commonly observed in magnetic materials in both the magnetic and nonmagnetic phases. We give a pedagogical overview of this phenomenon that summarizes both the experimental situation and the state of its theoretical understanding. We also put it in context by drawing parallels with unusual power-law transport behavior in other systems.
@article{arxiv.1809.09675,
title = {Anomalous Transport Behavior in Quantum Magnets},
author = {D. Belitz and T. R. Kirkpatrick},
journal= {arXiv preprint arXiv:1809.09675},
year = {2018}
}