Abstract
We present the results of a systematic investigation of the magnetic properties of the three-dimensional Kondo topological insulator using magnetization and muon-spin relaxation/rotation (SR) measurements. The SR measurements exhibit magnetic field fluctuations in below K due to electronic moments present in the system. However, no evidence for magnetic ordering is found down to 19 mK. The observed magnetism in is homogeneous in nature throughout the full volume of the sample. Bulk magnetization measurements on the same sample show consistent behavior. The agreement between SR, magnetization, and NMR results strongly indicate the appearance of intrinsic bulk magnetic in-gap states associated with fluctuating magnetic fields in at low temperature.
- Received 5 December 2013
- Revised 11 March 2014
DOI:https://doi.org/10.1103/PhysRevB.89.161107
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