Disorder-induced magnetoresistance has been reported in a range of solid metals and semiconductors, however, the underlying physical mechanism is still under debate because it is difficult to experimentally control. Liquid metals, due to lack of long-range order, offers an ideal model system where many forms of disorder can be deactivated by freezing the liquid. Here we report non-saturating magnetoresistance discovered in the liquid state of three metals: Ga, Ga-In-Sn and Bi-Pb-Sn-In alloys. The giant magnetoresistance appears above the respective melting points and has a maximum of 2500% at 14 Tesla. The reduced diamagnetism in the liquid state implies that a short-mean free path of the electron, induced by the spatial distribution of the liquid structure, is a key factor. A potential technological merit of this liquidtronic magnetoresistance is that it naturally operates at higher temperatures.
@article{arxiv.1907.01462,
title = {Giant and Linear Magnetoresistance in Liquid Metals at Ambient Temperature},
author = {Xiaolin Wang and Feixiang Xiang and David Cortie and Zengji Yue and Zhi Li and Zhidong Zhang and Lina Sang},
journal= {arXiv preprint arXiv:1907.01462},
year = {2019}
}