Direct observation of magnetic domains in rare-earth Weyl semimetal CeAlSi
ORAL
Abstract
Noncentrosymmetric Weyl semimetal CeAlSi exhibits ferromagnetic order below Tc ≈ 8.3K. Our early study shows that CeAlSi hosts a heterogenous state that consists of both stable and metastable ferromagnetic domains[1,2]. The exotic ferromagnetic states can be easily tuned using an external magnetic field due to the magnetoelastic effect and are closely related to the nontrivial electronic behaviors such as anomalous Hall effect and loop Hall effect[3]. In this work, we image the domain structure in CeAlSi with presence of an electric current in the sample. We show how the domains evolve with current and external field and discuss the coupling between the magnetic and the expected exotic electronic properties in CeAlSi.
References:
[1]. Xu, B., Franklin, J., Jayakody, A., Yang, H.-Y., Tafti, F. and Sochnikov, I., Adv. Quantum Technol., 4: 2000101(2021).
[2]. B. Xu, J. Franklin, H. -Y. Yang, F. Tafti and I. Sochnikov, 2021 IEEE International Magnetic Conference (INTERMAG 2021), pp. 1-4
[3]. Yang, H.-Y. et al., Physical Review B, 103, 115143(2021)
References:
[1]. Xu, B., Franklin, J., Jayakody, A., Yang, H.-Y., Tafti, F. and Sochnikov, I., Adv. Quantum Technol., 4: 2000101(2021).
[2]. B. Xu, J. Franklin, H. -Y. Yang, F. Tafti and I. Sochnikov, 2021 IEEE International Magnetic Conference (INTERMAG 2021), pp. 1-4
[3]. Yang, H.-Y. et al., Physical Review B, 103, 115143(2021)
–
Presenters
-
Bochao Xu
University of Connecticut
Authors
-
Bochao Xu
University of Connecticut
-
Jacob Franklin
University of Connecticut
-
Hung-Yu Y Yang
Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467, USA, University of California, Los Angeles, Boston College
-
Fazel Tafti
Boston College, Department of Physics, Boston College, Chestnut Hill, Massachusetts 02467, USA, Department of Physics, Boston College, Chestnut Hill, Massachusetts, 02467, USA
-
Ilya Sochnikov
University of Connecticut