Magneto-thermal transport in altermagnets

SPICE Workshop on Altermagnetism: Emerging Opportunities in a New Magnetic Phase, May 9th - 11th 2023

Helena Reichlova

Spintronics with antiferromagnets is a quickly developing research direction and in the last decade many spintronics phenomena were demonstrated in magnetically ordered systems with vanishing magnetization [1,2]. Very recently also the collinear magnets – altermagnets - were predicted to exhibit the anomalous Hall effect [3] arising from their spin and crystal symmetry. I will discuss magneto-transport experiments in altermagnets MnTe [4] and RuO₂, and compare the results to the measurements of the anomalous Hall effect in Mn₅Si₃ thin films [5].

References

[1]        T. Jungwirth et al., Nat. Nano. 11, 231–241 (2016)
[2]        V. Baltz et al., Rev. Mod. Phys. 90, 015005 (2018)
[3]        L. Smejkal et al., Sci. Adv. 6, aaz8809 (2020)
[4]        R. Gonzalez-Betancourt et al., Phys. Rev.Lett. (2023)
[5]        H. Reichlova et al., arXiv:2012.15651 (2021)