Bulletin of the American Physical Society
APS March Meeting 2021
Monday–Friday, March 15–19, 2021; Virtual; Time Zone: Central Daylight Time, USA
Session Y43: Multi-Polar, Multi-Channel, and Semimetal Kondo systems
11:30 AM–2:30 PM,
Friday, March 19, 2021
Sponsoring Unit: DCMP
Chair: Keshav Shrestha, West Texas State Univ
Abstract: Y43.00015 : Strong correlation effects on the nonlinear response in Weyl-Kondo semimetals
2:18 PM–2:30 PM
Recently, in Ce3Bi4Pd3, a promising candidate for a Weyl-Kondo semimetal(WKSM), a giant spontaneous Hall effect has been experimentally observed. This experiment implies that strong correlations can enhance NLH. However, the relation between strong correlations and NLH is still poorly understood.
In this work, we focus on NLH in WKSM. Specifically, we analyze a periodic Anderson model corresponding to a WKSM using dynamical mean-field theory combined with the numerical renormalization group. We use an extension of the Kubo formula for nonlinear responses to calculate the NLH. We find that the temperature dependence of NLH in our calculation is consistent with the experiment. We also show that strong correlation effects can enhance NLH.
 Inti Sodemann and Liang Fu, Phys, Rev, Lett. 115, 216806 (2015).
 Dzsaber et al., arXiv:1811.02819 (2018).
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