We report the observation of a highly unusual Hall current in the MnSi in an applied pressure P = 6-12 kbar. The Hall conductivity displays a distinctive step-wise field profile quite unlike any other Hall response observed in solids. We identify the origin of this Hall current with the effective real-space magnetic field due to chiral spin textures, which may be a precursor of the partial-order state at P>14.6 kbar. We discuss evidence favoring the chiral spin mechanism for the origin of the observed Hall anomaly.
@article{arxiv.0811.3146,
title = {Unusual Hall Effect Anomaly in MnSi Under Pressure},
author = {Minhyea Lee and W. Kang and Y. Onose and Y. Tokura and N. P. Ong},
journal= {arXiv preprint arXiv:0811.3146},
year = {2015}
}
Comments
4 pages, 3 figures : Minor changes and Journal info