Spin order and fluctuations in the and topological antiferromagnets: A study

XY Zhu, H Zhang, DJ Gawryluk, ZX Zhen, BC Yu, SL Ju… - Physical Review B, 2022 - APS
EuAl 4 and EuGa 4 are two candidate materials for studying the interplay between
correlated-electron phenomena, topological spin textures, and topologically nontrivial …

Giant magnetoresistance and topological Hall effect in the EuGa4 antiferromagnet

H Zhang, XY Zhu, Y Xu, DJ Gawryluk… - Journal of Physics …, 2021 - iopscience.iop.org
We report on systematic temperature-and magnetic field-dependent studies of the EuGa 4
binary compound, which crystallizes in a centrosymmetric tetragonal BaAl 4-type structure …

Anomalous Hall resistivity and possible topological Hall effect in the antiferromagnet

T Shang, Y Xu, DJ Gawryluk, JZ Ma, T Shiroka, M Shi… - Physical Review B, 2021 - APS
We report the observation of anomalous Hall resistivity in single crystals of EuAl 4, a
centrosymmetric tetragonal compound, which exhibits coexisting antiferromagnetic (AFM) …

Thermodynamic insights into the intricate magnetic phase diagram of

WR Meier, JR Torres, RP Hermann, J Zhao, B Lavina… - Physical Review B, 2022 - APS
The tetragonal intermetallic compound EuAl 4 hosts an exciting variety of low-temperature
phases. In addition to a charge density wave below 140 K, four ordered magnetic phases …

Evidence of magnetism-induced topological protection in the axion insulator candidate EuSn2P2

GM Pierantozzi, A De Vita, C Bigi… - Proceedings of the …, 2022 - National Acad Sciences
We unravel the interplay of topological properties and the layered (anti) ferromagnetic
ordering in EuSn2P2, using spin and chemical selective electron and X-ray spectroscopies …

Rhombic skyrmion lattice coupled with orthorhombic structural distortion in

M Gen, R Takagi, Y Watanabe, S Kitou, H Sagayama… - Physical Review B, 2023 - APS
The centrosymmetric tetragonal itinerant magnet EuAl 4 exhibits an intricate magnetic phase
diagram including rhombic and square skyrmion-lattice (SkL) phases in the external …

Anomalous Hall Conductivity and Nernst Effect of the Ideal Weyl Semimetallic Ferromagnet EuCd2As2

S Roychowdhury, M Yao, K Samanta, S Bae… - Advanced …, 2023 - Wiley Online Library
Weyl semimetal is a unique topological phase with topologically protected band crossings in
the bulk and robust surface states called Fermi arcs. Weyl nodes always appear in pairs with …

Angular dependence of the topological Hall effect in the uniaxial van der Waals ferromagnet

Y You, Y Gong, H Li, Z Li, M Zhu, J Tang, E Liu, Y Yao… - Physical Review B, 2019 - APS
Fe 3 GeTe 2 is a paradigmatic two-dimensional ferromagnet with strong uniaxial anisotropy.
In this work we systematically studied the angular dependence of electrical transport …

Unusual electrical and magnetic properties in layered EuZn2As2

J Blawat, M Marshall, J Singleton, E Feng… - arXiv preprint arXiv …, 2022 - arxiv.org
Eu-based compounds often exhibit unusual magnetism, which is critical for nontrivial
topological properties seen in materials such as EuCd2As2. We investigate the structure …

Incommensurate magnetic orders and topological Hall effect in the square-net centrosymmetric system

JM Moya, S Lei, EM Clements, CS Kengle, S Sun… - Physical Review …, 2022 - APS
Neutron diffraction on the centrosymmetric square-net magnet EuGa 2 Al 2 reveals multiple
incommensurate magnetic states (AFM1, 2, 3) in zero field. In applied field, a new magnetic …