%0 Journal Article
%T Hysteretic Magnetotransport in SmB6 at Low Magnetic Fields
%A Yun Suk Eo
%A Steven Wolgast
%A Teoman Ozturk
%A Gang Li
%A Ziji Xiang
%A Colin Tinsman
%A Tomoya Asaba
%A Fan Yu
%A Benjamin Lawson
%A James W. Allen
%A Kai Sun
%A Lu Li
%A Cagliyan Kurdak
%A Dae-Jeong Kim
%A Zachary Fisk
%J Physics
%D 2014
%I arXiv
%X Utilizing Corbino disc structures, we have examined the magnetic field response of resistivity for the surface states of SmB6 on different crystalline surfaces at low temperatures. Our results reveal a hysteretic behavior whose magnitude depends on the magnetic field sweep rate and temperature. Although this feature becomes smaller when the field sweep is slower, a complete elimination or saturation is not observed in our slowest sweep-rate measurements, which is much slower than a typical magnetotransport trace. These observations cannot be explained by quantum interference corrections such as weak anti-localization. Instead, they are consistent with behaviors of glassy surface magnetic ordering, whose magnetic origin is most likely from samarium oxide (Sm2O3) forming on the surface during exposure to ambient conditions.
%U http://arxiv.org/abs/1410.7430v1