Distributed Current Source Method for Modeling Magnetic and Eddy-Current Fields induced in Biological Object
- Award ID(s):
- 1662700
- PAR ID:
- 10149930
- Date Published:
- Journal Name:
- Proceedings of the International Conference on Advanced Intelligent (AIM 2019),
- Page Range / eLocation ID:
- 1522 to 1527
- Format(s):
- Medium: X
- Sponsoring Org:
- National Science Foundation
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Abstract Chiral orbital currents (COC) underpin a novel colossal magnetoresistance in ferrimagnetic Mn3Si2Te6. Here we report the Hall effect in the COC state which exhibits the following unprecedented features: (1) A sharp, current-sensitive peak in the magnetic field dependence of the Hall resistivity, and (2) A current-sensitive scaling relation between the Hall conductivityσxyand the longitudinal conductivityσxx, namely,σxy∝σxxαwith α reaching up to 5, which is exceptionally large compared toα ≤ 2 typical of all solids. The novel Hall responses along with a current-sensitive carrier density and a large Hall angle of 15% point to a giant, current-sensitive Hall effect that is unique to the COC state. Here, we show that a magnetic field induced by the fully developed COC combines with the applied magnetic field to exert the greatly enhanced transverse force on charge carriers, which dictates the COC Hall responses.more » « less
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